Gucci Vintage 1980s Women's Black Leather Trousers with Tapered Legs
By Gucci
Located in Sharon, CT
Pants are not hemmed (showing of a 2 1.2" hem). Legs are tapered with two side pockets in front
Gucci Vintage 1980s Women's Black Leather Trousers with Tapered Legs
By Gucci
Located in Sharon, CT
Pants are not hemmed (showing of a 2 1.2" hem). Legs are tapered with two side pockets in front
Chanel Womens 2023 Coco Beach Star Print Pink Black Pants IT 40 Joggers Trousers
By Chanel
Located in Miami, FL
- Pink and black star print exterior - Tagged size IT 40 - Made of 100% cotton Condition
Louis Vuitton Womens Monogram Jacquared Colorblock Print Pants Small Black Wool
By Louis Vuitton
Located in Miami, FL
- Black white brown exterior - Tagged size S - Made of 73% wool 18% cashmere 6% polyamide
Louis Vuitton Womens Side Stripe Track Pants Small Brown Black Lv Logo Monogram
By Louis Vuitton
Located in Miami, FL
- Black exterior with brown stripes - Tagged size S - Made of 100% polyester with 100% silk
Chrome Hearts Women Waffle Knit Cross Patch Thermal Pants Large Black 925 Silver
By Chrome Hearts
Located in Miami, FL
- Black exterior - Tagged size L - Made of 100% cotton Condition: The pants are in overall
Chanel Womens Métiers d’Art 2019 Pants Size FR 36 Black Gold Tweed CC Logo
By Chanel
Located in Miami, FL
- Black and gold exterior - Tagged size FR 36 - Made of 65% cotton, 25% silk, 10% polyethylene
Roberto Cavalli Women's Animalier Silk Pants IT 40, 21st Century
By Roberto Cavalli
Located in Gazzaniga (BG), IT
Beautiful pants by Roberto Cavalli Silk Animalier print Four pockets Total length cm 92 (36.2
$559Sale Price|20% Off
Size: FR 36
Christian Dior Late 1990s Women's Dark Brown Suede Straight Leg Pants
By Christian Dior
Located in 'S-HERTOGENBOSCH, NL
Christian Dior's dark brown suede (velvet goat) women's trousers from the late 1990s are a rare and
Louis Vuitton Women's 38 Constellation LV Logo Lounge Pants 96lk719s
By Louis Vuitton
Located in Dix hills, NY
: 40.2" OVERALL EXCELLENT+ CONDITION (9.5/10 or A+ ) Womens 38 or US 6 Waist: 13.5" Across 27
Gianni Versace Couture F/W 1992 Black Wool Bondage Pants It.42
By Gianni Versace
Located in Montgomery, TX
Gianni Versace Couture Women's Black Bondage Pants F/W 1992 Collection Designer size - 42 100
Celine Women Cargo Pants Size 40 US8 Green Kaki Lightweight Nylon Gold Hardware
By Celine
Located in Miami, FL
- Kaki green exterior - Quilted cargo nylon pants - Tagged size 40 - Gold colored hardware
Fendi Women FF Pants Size IT 42 US 6 Brown Cotton Poly Trousers Ankle Zip
By Fendi
Located in Miami, FL
Condition: The pants are in overall great condition with no major imperfections Measurements
$2,768
Size: 4 (S, 27)
Louis Vuitton Women's Small Extremely Rare Black Graffiti Roses Leggings 12lv34s
By Louis Vuitton
Located in Dix hills, NY
Louis Vuitton Women's Small Extremely Rare Black Graffiti Roses Leggings 12lv34s Made In: France
Loewe Womens Fisherman Denim Pants Size FR 36 Blue Jeans Size US 2-4
By Loewe
Located in Miami, FL
- Indigo exterior - Tagged size 36 in the brand fits US 2-4 - Made of 100% cotton Condition: The jeans are in overall great condition with no major imperfections Measureme...
La Perla Women Arianna Pants Size IT 2 US Small Black Blue Semi Sheer Flowy Wide
By La Perla
Located in Miami, FL
- Blue and black exterior - Tagged size Small - Made of 90% polyester 8% polyamide 2% elastane
Louis Vuitton Women Jogging Track 40 Black Red Monogram Technical Cotton Joggers
By Louis Vuitton
Located in Miami, FL
- Red and black monogram exterior - Tagged size 40 - Made of 100% polyamide Condition
Louis Vuitton Womens Damier Leggings Size FR 36 Blue Black Checkerboard
By Louis Vuitton
Located in Miami, FL
- Blue and black checkerboard exterior - Tagged size 36 - Made of 75% polyamide 25% elastane
Loewe Women Cropped Wide Leg Pants Size Large Green Nappa Lambskin Leather
By Loewe
Located in Miami, FL
!!!! - Tagged size L - Made of 100% lambskin leather Condition: The pants are in overall decent condition
Christian Dior Womens Oblique Logo Leggings Medium Blue Gray Spandex Polyamide
By Christian Dior
Located in Miami, FL
- Dior Oblique logo exterior - Tagged size M - Made of 80% polyester 20% spandex Condition: The leggings are in overall great condition with no major imperfections Measure...
$3,599
Size: 10 (M, 31)
Louis Vuitton Women's Size 40 Stephen Sprouse Orange Graffiti Leggings 126LV50
By Louis Vuitton
Located in Dix hills, NY
( 8/10 or AB ) Size: 40 Pants Length: 34" Waist: 11.5" Across Signs of Wear: Exterior: Very Minor
Chrome Hearts Womens Leggings Long Johns Size Medium Green Brown Camo Camouflage
By Chrome Hearts
Located in Miami, FL
- Camo exterior - Tagged size M - Made of 95% cotton 5% polyurethane Condition: The long johns are in overall great condition with no major imperfections Measurements: ( A...
Chanel Women CC Logo Floral Camellia Print Jean FR40 Black White Stretch Cotton
By Chanel
Located in Miami, FL
- Black white floral camellia exterior ( CC Logo print all over ) - Tagged size 40 in the brand
Gucci 2007 Cranberry Red Velvet Womens Pants Suit
By Gucci
Located in Los Angeles, CA
: 36" Waist: 34" Sleeves: 26" Pants: Size on Tag: 46 Waist: 34" Hips: 42" Rise: 10.5" Inseam
Gianni Versace-Italy-Sleek Black Women's Pants
By Gianni Versace
Located in Oradell, NJ
This is a stunning pair of sleek black women's pants designed by Gianni Versace. The pants have a
Vince Women's Wide Leg Black Trousers
By Vince
Located in London, GB
's Wide Leg Black Trousers
Valentino Garavani Women's Galaxy Printed Trousers Black Silk
By Valentino Garavani
Located in London, GB
” The model is 162CM / 63. 8” wearing size 38IT. Valentino Garavani Women's Galaxy Printed Trousers
Emilia Wickstead Women's Black Textured Straight Leg Trousers
By Emilia Wickstead
Located in London, GB
CONDITION is Very good. Minimal wear to trousers is evident. Minimal wear and pilling to the oute
Helmut Lang Women's Black Frayed Straight Leg Trousers
By Helmut Lang
Located in London, GB
this used Helmut Lang designer resale item. Details Black Polyester Straight leg trousers High
Fendi Women's Black Wool Straight Leg Suit Trousers
By Fendi
Located in London, GB
Black Wool Straight leg trousers High rise Front zip closure with button and clasp Belt hoops
Etro Women's Black Floral Pattern Straight Leg Trousers
By Etro
Located in London, GB
CONDITION is Very good. Minimal wear to trousers is evident. Minimal wear to rear-right leg above
Altuzarra Women's Black High Rise Suit Trousers
By Altuzarra
Located in London, GB
designer resale item. Details Black Synthetic Straight leg suit trousers High rise Front zip
Diane Von Furstenberg Women's Black Straight Leg Trousers
By Diane von Furstenberg
Located in London, GB
momentous CSD designer resale revolution! Diane Von Furstenberg Women's Black Straight Leg Trousers
Pre-Loved Christopher Kane Women's Black Trousers with Diamanté Detail
By Christopher Kane
Located in London, GB
Kane Women's Black Trousers with Diamanté Detail
Pre-Loved Christopher Kane Women's Black Trousers with Diamanté Detail
By Christopher Kane
Located in London, GB
Kane Women's Black Trousers with Diamanté Detail
Pre-Loved Jacquemus Women's Black Wool Straight Leg Trousers
By Jacquemus
Located in London, GB
designer resale item. Details Black Wool Straight leg trousers High rise Front zip closure with clasps and
Dolce & Gabbana Women's Black Wide Leg Virgin Wool Trousers
By Dolce & Gabbana
Located in London, GB
revolution! Dolce & Gabbana Women's Black Wide Leg Virgin Wool Trousers
Gucci Women's Black High Waist Straight Leg Leather Trousers
By Gucci
Located in London, GB
's Black High Waist Straight Leg Leather Trousers
Alaïa Women's Stretch Straight Leg Trousers
Located in London, GB
revolution! Alaïa Women's Stretch Straight Leg Trousers
Alexander Wang Women's Black Oversized Zip Accent Skinny Trousers
By Alexander Wang
Located in London, GB
waistband on this used Alexander Wang designer resale item. Details Black Synthetic Skinny trousers Mid
Pre-Loved Alexander Wang Women's Black Oversized Zip Accent Skinny Trousers
By Alexander Wang
Located in London, GB
waistband on this used Alexander Wang designer resale item. Details Black Synthetic Skinny trousers Mid rise
Pre-Loved Prada Women's Black Wool Mid Rise Straight Trousers
By Prada
Located in London, GB
-Loved Prada Women's Black Wool Mid Rise Straight Trousers
Acne Studios Women's Black Coated Skin Yoko Straight Leg Trousers
Located in London, GB
Black Coated cotton Straight leg trousers Mid rise Belt hoops Front side pockets Back zip closure
Paige Jeans Women's Burgundy Velvet Skinny Trousers
Located in London, GB
trousers High rise Front zip closure with button Belt hoops Front side pockets Back patch pockets
Yohji Yamamoto Women's Black A/W2021 High Waisted Asymmetric Culotte Trousers
By Yohji Yamamoto
Located in London, GB
designer resale revolution! Yohji Yamamoto Women's Black A/W2021 High Waisted Asymmetric Culotte Trousers
Pre-Loved Maison Margiela Women's Black Wool 2015 Wide Leg Trousers
By Maison Martin Margiela
Located in London, GB
progress the momentous CSD designer resale revolution! Pre-Loved Maison Margiela Women's Black Wool 2015
Pre-Loved Armani Collezioni Women's Black Striped Straight Wide Leg Trousers
By Armani Collezioni
Located in London, GB
Collezioni Women's Black Striped Straight Wide Leg Trousers
Pre-Loved Armani Collezioni Women's Black Striped Straight Wide Leg Trousers
By Armani Collezioni
Located in London, GB
Collezioni Women's Black Striped Straight Wide Leg Trousers
Pre-Loved 'S Max Mara Women's Black Silk Wide Leg Trousers
Located in London, GB
revolution! Pre-Loved 'S Max Mara Women's Black Silk Wide Leg Trousers
Sanne Women's Black Wool Wide Leg Trousers
Located in London, GB
sample item. Details Designer sample item Black Wool Wide leg trousers High rise Front zip
Pre-Loved Dolce & Gabbana Women's Black Wide Leg Trousers with Rope Belt
By Dolce & Gabbana
Located in London, GB
this used Dolce and Gabanna designer resale item. Details Black Wool Wide leg trousers Folded hemline
Pre-Loved Diane Von Furstenberg Women's Martine Galaxy Trousers
By Diane von Furstenberg
Located in London, GB
designer resale item. Details Black and white Synthetic Straight leg trousers High waisted Galaxy/ polkadot
Pierre Cardin Paris Black Leather Pants Regular Fit Biker Trousers 1990s
By Pierre Cardin Paris
Located in Brindisi, Bt
Vintage Pierre Cardin women's trousers. Black color, classic straight model, 100% leather. Zip and
Roberto Cavalli Black Gold Cotton Capri Trousers 2000s
By Roberto Cavalli
Located in Brindisi, Bt
Vintage Roberto Cavalli women's trousers, black color in cotton, particular gold colored chain
Roberto Cavalli Black Gold Cotton Capri Trousers 2000s
By Roberto Cavalli
Located in Brindisi, Bt
Vintage Roberto Cavalli women's trousers, black color in cotton, particular gold colored chain
1990s Pierre Cardin Paris Black Leather Pants Regular
By Pierre Cardin Paris
Located in Brindisi, Bt
Vintage Pierre Cardin women's trousers. Black color, classic straight model, 100% leather. Zip and
1990s Pierre Cardin Paris Black Leather Pants Regular
By Pierre Cardin
Located in Brindisi, Bt
Vintage Pierre Cardin women's trousers. Black color, classic straight model, 100% leather. Zip and
1980s Krizia Poi Black Card Play Poker Cotton Pleated Trousers Pants
By KRIZIA POI, Krizia
Located in Brindisi, Bt
Vintage Krizia women's trousers, black cotton. Display colored playing cards, side pockets, high
Pre-Loved Tibi Women's Black Buckle Cuffed Leg Wide Leg Trousers
By Tibi
Located in London, GB
momentous CSD designer resale revolution! Pre-Loved Tibi Women's Black Buckle Cuffed Leg Wide Leg Trousers
Tibi Women's Black & White Patterned Culottes
By Tibi
Located in London, GB
CONDITION is Very good. Minimal wear to culottes is evident. Minimal wear to the outer fabric on this used Tibi designer resale item. Details Two tone Viscose Loose fit 2x ex...
Theory Women's Black Silk Check Culottes with Ruffle Waist
Located in London, GB
CONDITION is Very good. Minimal wear to trousers is evident. Minimal loose threads to the hemline
Pre-Loved Theory Women's Black Silk Check Culottes with Ruffle Waist
Located in London, GB
CONDITION is Very good. Minimal wear to trousers is evident. Minimal loose threads to the hemline
Saint Laurent Women's Yves Saint Laurent Black High Waisted Wide Leg Culottes
By Saint Laurent
Located in London, GB
CONDITION is Very good. Minimal wear to trousers is evident. Minimal wear to the outer fabric which
Pre-Loved Adidas By Stella McCartney Women's Blue and Black Sports Leggings
Located in London, GB
designer resale revolution! Pre-Loved Adidas By Stella McCartney Women's Blue and Black Sports Leggings
Roland Mouret Women's Black Off Shoulder Jumpsuit
By Roland Mouret
Located in London, GB
progress the momentous CSD designer resale revolution! Roland Mouret Women's Black Off Shoulder Jumpsuit
Pre-Loved Loewe Women's Black High Waisted Culottes
By Loewe
Located in London, GB
Women's Black High Waisted Culottes
Dolce & Gabbana Women's Black Pocket Detail Skinny Jeans
By Dolce & Gabbana
Located in London, GB
designer resale item. Details Black Denim Skinny jeans Mid rise Front zip closure with clasps Front side
Pre-Loved Alexander Wang Women's Black Long Sleeve Jumpsuit
By Alexander Wang
Located in London, GB
Women's Black Long Sleeve Jumpsuit
Pre-Loved Iro Women's Black Cut Out Lace Wrap Playsuit
By Iro
Located in London, GB
Iro Women's Black Cut Out Lace Wrap Playsuit
Pre-Loved Stella McCartney Women's Black Denim Slim Fit Jeans
By Stella McCartney
Located in London, GB
McCartney Women's Black Denim Slim Fit Jeans
Pre-Loved Joseph Women's Black Sleeveless Jumpsuit with Lace Overlay Bust
By Joseph
Located in London, GB
designer resale revolution! Pre-Loved Joseph Women's Black Sleeveless Jumpsuit with Lace Overlay Bust
Louis Vuitton Women's LV 34 or US 2 Urs Fischer Ski Leggings Stretch 59lk628s
By Louis Vuitton
Located in Dix hills, NY
Date Code/Serial Number: VCCW05 CA36929 Made In: Italy Measurements: Length: 12" Width: .2" Height: 38" Size: 34 OVERALL NEW CONDITION ( 10/10 or N ) Accessories: Tags Waist: 12...
Pre-Loved Jonathan Simkhai Women's Black Sleeveless Cut Out Jumpsuit with Blue
Located in London, GB
revolution! Pre-Loved Jonathan Simkhai Women's Black Sleeveless Cut Out Jumpsuit with Blue Wave Trim
Philipp Plein Women's Anthracite Faded Skinny Jeans
By Philipp Plein
Located in London, GB
CONDITION is Very good. Minimal wear to jeans is evident. Minimal wear to the zipper and buttons which are a little tarnished. There is also scuffs to the plaque at the back of jeans...
Pre-Loved Chloé Women's Halterneck Jumpsuit with Trapeze Pant Legs
By Chloé
Located in London, GB
designer resale item. Details Colour - black Material - silk Style - jumpsuit Halterneck Zip and snap
Pre-Loved Acne Studios Women's High Waist Straight Leg Denim Jeans
Located in London, GB
. Details Black Straight-leg style Composition 92% Cotton, 5% Polyester, 3% Elastane Fitting Information
Pre-Loved Acne Studios Women's Blue Denim Straight Leg Low Rise Jeans
Located in London, GB
sustainably and extending the life cycle of the product. Pre-Loved Acne Studios Women's Blue Denim Straight
Sanne Women's Black Strip Accent Trousers
Located in London, GB
sample item. Details Designer sample item Black Polyester Straight leg trousers Metallic blue
Loewe Women's Black High Rise Sagging Trousers
By Loewe
Located in London, GB
resale item. Details Black Viscose Sagging trousers High rise Elasticated waistband with
Stella McCartney Women's Black Slim Fit Trousers with Zip Details
By Stella McCartney
Located in London, GB
Black Wool Slim fit trousers Ankle length Low rise Front zip closure with clasps and button Ankle
Stella McCartney Women's Black Slim Fit Zip Accent Trousers
By Stella McCartney
Located in London, GB
closure on this used Stella McCartney designer resale item. Details Black Wool Slim fit trousers
John Galliano Lace Cardigan and 2 Camisoles Set
By John Galliano
Located in Water Mill, NY
A fabulous cardigan and camisole set in black knit lace plus an additional matching red camisole all from John Galliano. The set consists of 2 flower pattern lace knit camisoles one ...
Versace SS 2005 Madonna Ad Campaign Backless Silk Dress
By Versace
Located in Water Mill, NY
A fabulous light yellow stretch silk dress as featured in Versace's notable 2005 ad campaign. It has a shirt collar, fold up elbow length sleeves with functional tabs, 2 chest flap p...
John Galliano for Christian Dior Silk Ruffle Hem Dress
By John Galliano, Christian Dior
Located in Water Mill, NY
A gorgeous silk dress by John Galliano for Christian Dior in brightly colored flowers on a navy and burgundy background. The spaghetti strap bodice is semi fitted and adorned on one ...
Versace Silk Cut out Back Dress
By Versace
Located in Water Mill, NY
A beautiful pink silk dress from Versace. It is is a simple sleeveless sheath from the front. The back is exposed from the shoulders to low back with the exception of draping framin...
Trompe L'oeil Oversize Belted Trench Coat
Located in Water Mill, NY
A fabulous beige and black cotton trompe l'oeil trench coat jacket from Japanese designers Naoki Ichihara, Tadanao Yamashita and Shingo Otsuka for TALK ABOUT THE DISTRACTION. It app...
nwot's DONNA KARAN 90's Vintage Silk Maxi Slip Dress Gown
By Donna Karan
Located in Leonardo, NJ
Donna Karan Vintage 1990's Beige and brown tonal colors Pullover 100% silk Has some stretch Pristine Size IT42 Measurements in inches laying flat: length 59, pit to pit 15 to 17, sma...
Chanel Silk Chiffon Tiered Cocktail Dress by Lagerfeld
By Chanel, Karl Lagerfeld for Chanel
Located in Sharon, CT
Based on the classic Coco Chanel Tiered Cocktail Dress, Karl Lagerfeld's homage is printed with a transparent black repeated floral and CC logo pattern. EU appx size 36-38.
$3,217Sale Price|35% Off
Size: One Size
Magnificent Silk Yves Saint Laurent Wrap Stole Jacket Cape 2006
By Yves Saint Laurent, Stefano Pilati for Yves Saint Laurent
Located in Conroe, TX
Yves Saint Laurent Store Display in Excellent Condition Stunning Fuchsia Silk Evening Cape/Overcoat Size: One Size Hand Sewn and Limited Edition Fall 2006 A rare Find The black sa...
Gucci by Frida Giannini Pink Flora Print Jacket, Resort 2007
By Frida Giannini, Gucci
Located in Marlborough, GB
Gucci by Frida Giannini pink floral print jacket featuring the iconic “flora” print, Resort 2007 Appeared on the runway alongside a blue longer version, which appeared on Emma Robert...
LES HABITUDES 90's Vintage Couture Hand-Beaded Silk Embellished Evening Gown
Located in Leonardo, NJ
wedding / bridal / bride Les Habitudes Couture Vintage 1990's Entirely hand-made in England 100% silk Size Medium but fits like a XS/S Excellent Condition, no flaws Measurements in i...
VERSACE 2005 Vintage Runway Espresso Brown Silk Dress Gold Medusa
By Versace
Located in Leonardo, NJ
Versace Vintage Runway FW05 Espresso brown silk Gold medusa hardware Sheer lace panel around waist Flirty flouncy hem Side zip Size IT44 Excellent Condition, minor feeling of wear, n...
$3,616
Size: Equivalent French Size 40
An Yves Saint Laurent Haute Couture Coat Dress Numbered 29390 Circa 1970/1980
By Yves Saint Laurent
Located in Toulon, FR
Circa 1970/1980 France Beautiful wrap dress in black wool crepe and swan feathers by Yves Saint Laurent Haute Couture numbered 29390 Circa 1970. From the wardrobe of Madame Augier, ...
Catherine Bacon Bohemian Silk & Metal 3-Piece Ensemble
Located in Los Angeles, CA
Incredible 3-piece bohemian set from Bay Area wearable clothing artist Catherine Bacon. This ensemble is all silk, from raw silk to chiffon. Featuring a bias cut maxi skirt, a silk l...
Karl Lagerfeld for Chanel Black Lace Gown
By Karl Lagerfeld for Chanel, Chanel
Located in Sharon, CT
Karl Lagerfeld for Chanel Collection Croisière '84. Black floral motif lace Evening Gown with pink satin sash, fully lined.
$9,800
Size: Small ( 2 - 4 )
Gianni Versace Fall 1992 Bondage S&M Collection Runway Leather Fringe 92 Pants
By Gianni Versace
Located in San Diego, CA
Rare museum worthy vintage Gianni Versace Fall/Winter 1992 S&M Bondage Collection runway leather pants ! Naomi Campbell strutted down the runway in these trousers. High waisted f...
Sensational 1990s Bill Blass Couture Nude Silk Chiffon Paisley Vintage 90s Gown
By Bill Blass
Located in San Diego, CA
Sensational vintage late 90s BILL BLASS couture nude silk chiffon paisley print full length evening dress with dramatic train! This is an original sample, and is incredibly well made...
The pants chosen for an outfit can elevate it to a true fashion triumph. From casual black trousers to a wedding pantsuit, there is a good pair of vintage or designer pants for every wardrobe.
Jeans are a staple of casual wear — an old pair of Levi’s 501s and a white tee remain an iconic duo. But jeans can also make a statement. The cut and fit of one’s jeans can complement a figure and accentuate a style. Bootcut or skinny jeans can be paired with looser shirts and blouses; more fitted tops can play with wider legs such as bell-bottoms or flares. (This will come as no surprise to the younger millennials leading the resurrection of 1990s fashion.) Vintage denim gives an outfit a classic look, while designer jeans, like a pair from Versace, can prove provocative as part of any ensemble.
Pantsuits are a stylized suit with pants and a matching jacket worn by women in business and semiformal settings. Vintage pantsuits and jumpsuits — in which the pants and top are one piece — come in a variety of styles and cuts for every body shape and occasion. Today many designers create fashionable pantsuits that can be worn to glamorous events.
Whether long or short, casual or formal, vintage and designer pants and other clothing on 1stDibs will have the perfect fit.
Costumer to the stars Ray Aghayan brought the famed painting to life with his spectacular design.
From handbags and heels to jackets and jewels, Sharon Coplan Hurowitz has a deep admiration for (and collection of) all things Chanel.
Jeriana San Juan explains how she undertook the intimidating project of designing costumes for the new Netflix series about the New York fashion legend. (Hint: She found vintage Halston on 1stDibs!)
Once considered a controversial item of clothing, fashion designer Sonja de Lennart's creation is now a bona fide classic.
The classic tweed garment has been a wardrobe staple of chic women around the world since the 1950s.
Amanda Benchley and Bridget Moynahan teamed up to explore the relationship between powerful women and their most significant footwear.
This year's Costume Institute exhibition is all about embracing the eccentric.
Ballrooms, Bar Suits and British royals — in a sweeping exhibition, the London museum looks back on 70 years of the French fashion house, as well as its illustrious founder and his fondness for the United Kingdom.