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  • Theory Belted Waistcoat
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    Theory Belted Waistcoat
    Beige linen and cotton belted waistcoat from Theory featuring an open front, a tie fastening, notched lapels, a sleeveless design, two inset pockets to the sides and a straight hem.
  • Theory Jiliya Vest in Integ
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    Theory Jiliya Vest in Integ
    A renewed take on the standard trench-inspired jacket. An asymmetrical storm flap accents the relaxed lapels while a self-tie sash finishes this nonchalant yet sophisticated sleeveless silhouette. Made from heavy linen. 100% Linen. Adjustable self-tie sash. Two pockets at sides. Dry clean only.
  • Theory Jiliya linen vest
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    Theory Jiliya linen vest
    Theory Jiliya linen vest, Theory takes the details of a classic trench and incorporates them into this long beige linen vest. Ideal for warm weather, this mid-weight style is lined solely at the shoulders to maintain a relaxed feel and comes with a tie-fastening belt to cinch the waist Size: XS. Gender: Female. Age Group: Adult.
  • Theory Adar Open-Front Vest
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    Theory Adar Open-Front Vest
    Adar Open-Front Vest A streamlined vest in richly dyed crepe, defined by an effortless open front and minimalist design. Notched lapel. Open front. Sleeveless. Hip welt pockets. Double back vents. About 24" from shoulder to hem. Viscose/virgin wool/elastane. Dry clean. Made in USA of Italian fabric. - Colors: Beetroot,White - Sizes: 6,12,10,0,8,4,2
  • Theory Vest - Jala Linen
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    Theory Vest - Jala Linen
    Theory re-thinks the timeless tailored vest with a modern asymmetric front and soft ruffle detail for a work-to-weekend layering piece that's loaded with eye-catching edge. Linen/viscose; lining: polyester/spandex. Dry clean. Made in USA. Notched lapels, sleeveless, double-breasted front closure. Asymmetric front with pleated ruffle, one flap hip pocket, lined.
  • Theory Vest - Adar Seasons
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    Theory Vest - Adar Seasons
    Viscose/virgin wool/elastane; lining: polyester. Dry clean. Made in USA and Imported materials. Notched lapel, sleeveless, open front, two slit hip pockets. Dual back vents, lined.
  • Theory 'Adar' virgin wool blend waistcoat
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    Theory 'Adar' virgin wool blend waistcoat
    Richly rendered in a beetroot hue, this Theory waistcoat will stand out amongst its dark counterparts with a vibrant, composed appeal. Crafted from sumptuous virgin wool blend, this cover-up is pinpointed with a notched lapel for a sartorial upgrade, impeccably infusing casual-meets-refined sensibility.
  • Theory Long Linen Vest
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    Theory Long Linen Vest
    Long Linen Vest An edgy trenchcoat-inspired design updates this swingy linen vest. Notched lapels. Sleeveless. Self belt. Side pockets. Stormflap. Back vent. About 38" from shoulder to hem. Linen. Dry clean. Made in Italy. - Color: Flax - Sizes: P,M,S,L
  • Theory Adar Open-Front Suiting Vest
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    Theory Adar Open-Front Suiting Vest
    Theory Adar Open-Front Suiting Vest Details Theory Adar vest in Seasons charmeuse. Approx. measurements: 10" from shoulder to hem, 29. 5"L from center back to hem. Notch collar; open front. Wide shoulder coverage. Side pockets. Loose fit. 7. 5"L slit. Viscose/virgin wool/spandex. Dry clean. Made in USA of imported material. Model's measurements: Height 5'11"/180cm, bust 32"/81cm, waist 25"/64cm, hips 35"/89cm, dress size US 2/4. Designer About Theory: Founded in 1997 by Andrew Rosen, New York-based Theory redefined the modern contemporary category. Exceptional fit, high-quality fabrics, and sleek silhouettes for both men and women have made Theory designs go-to staples in stylish closets around the globe. Size: 4. Color: Red. Age Group: Adult. Material: 75% VISCOSE, 20% VIRGINWOOL, 5% ELASTANE.
  • Theory Samison Moto Leather Vest
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    Theory Samison Moto Leather Vest
    Theory Samison vest in smooth leather. Notch collar; front zip. Wide shoulder coverage. Front zip pocket. Belted hem. Imported.
  • Theory Adar stretch-gabardine vest
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    Theory Adar stretch-gabardine vest
    Theory Adar stretch-gabardine vest, Update your tailoring this summer with Theory's 'Adar' vest. Crafted from a breezy stretch-gabardine, this open front design has a slightly loose fit, notched lapels and a partially lined interior Size: 12. Gender: Female. Age Group: Adult.
  • Theory Adar Vest in Seasons
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    Theory Adar Vest in Seasons
    FIT: This vest is a seasonal alternative to the suit, with a double lapel and double pockets. FABRIC: Made from Seasons, a versatile viscose wool suiting with a touch of stretch. HOW TO WEAR IT: Chic paired with your favorite Theory pant. 75% Viscose, 20% Virginwool, 5% Elastane. Standard notched lapels. Dry clean only.
  • Theory Adar Vest
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    Theory Adar Vest
    Red virgin wool blend 'Adar' vest from Theory.
  • Theory Jiliya Long Linen Vest
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    Theory Jiliya Long Linen Vest
    Theory. Jiliya Long Linen Vest. Theory Jiliya vest in Integ linen. Approx. measurements: 30.3"L from shoulder to hem, 39.1"L from center back to hem. Exaggerated notch collar; open front. Frayed cap sleeves. Trench flap at back, 18.1"L slit. Long, loose silhouette. Dry clean. Imported.
  • Theory Jiliya Long Linen Vest
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    Theory Jiliya Long Linen Vest
    Theory Jiliya vest in Integ linen. Approx. measurements: 30.3"L from shoulder to hem, 39.1"L from center back to hem. Exaggerated notch collar; open front. Frayed cap sleeves. Trench flap at back, 18.1"L slit. Long, loose silhouette. Dry clean. Imported. Model's measurements: Height 5'11"/180cm, bust 32"/81cm, waist 25"/64cm, hips 35"/89cm, dress size US 2/4.
  • Theory Vest - Katara Integ
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    Theory Vest - Katara Integ
    Add a tailored twist to any outfit with Theory's trench-style vest. Rendered in textured linen with wide lapels and a waist-cinching belt, it's a balmy weather stand-in for a jacket--and just as polished. Linen. Dry clean. Imported. Oversize notch lapel, wrap front with removable self-tie belt. Belt-looped waist, side slit pockets, storm flap at back, back vent.
  • Theory Jiliya Long Linen Vest
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    Theory Jiliya Long Linen Vest
    Theory Jiliya Long Linen Vest Details Theory Jiliya vest in Integ linen. Approx. measurements: 30. 3"L from shoulder to hem, 39. 1"L from center back to hem. Exaggerated notch collar; open front. Frayed cap sleeves. Trench flap at back, 18. 1"L slit. Long, loose silhouette. Dry clean. Imported. Model's measurements: Height 5'11"/180cm, bust 32"/81cm, waist 25"/64cm, hips 35"/89cm, dress size US 2/4. Designer About Theory: Founded in 1997 by Andrew Rosen, New York-based Theory redefined the modern contemporary category. Exceptional fit, high-quality fabrics, and sleek silhouettes for both men and women have made Theory designs go-to staples in stylish closets around the globe. Size: SMALL. Color: FLAX. Age Group: Adult. Material: 100% LINEN.
  • Theory Adar Open-Front Suiting Vest
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    Theory Adar Open-Front Suiting Vest
    Theory Adar vest in Seasons charmeuse. Approx. measurements: 10" from shoulder to hem, 29.5"L from center back to hem. Notch collar; open front. Wide shoulder coverage. Side pockets. Loose fit. 7.5"L slit. Viscose/virgin wool/spandex. Dry clean. Made in USA of imported material. Model's measurements: Height 5'11"/180cm, bust 32"/81cm, waist 25"/64cm, hips 35"/89cm, dress size US 2/4.
  • Theory Eldora Patterned Suiting Vest
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    Theory Eldora Patterned Suiting Vest
    Theory. Eldora Patterned Suiting Vest. Theory Eldora vest in Guided patterned suiting fabric. Notch collar; open front. Wide shoulder coverage. Side slip pockets. Straight hem. Cotton/polyester/acrylic. Made in USA of Italian material.
  • Theory Guided Eldora Vest - Black/White
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    Theory Guided Eldora Vest - Black/White
    Metallic threads add subtle shimmer to a graphic tweed Theory vest. Peaked lapels flow into an open placket. Welt hip pockets. Raw arm openings. Unlined. Fabric: Tweed. 49% cotton/35% polyester/16% acrylic. Dry clean. Made in the USA. Measurements Length: 25.5in / 65cm, from shoulder Measurements from size 4. Available sizes: 0,2,4,6
  • Theory Flax linen 'Jiliya' belted longline vest
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    Theory Flax linen 'Jiliya' belted longline vest
    Up to 80% Off selected styles
    Introducing 'Jiliya', the must-have linen vest of the season by Theory. Pair this contemporary design with a fitted dress and sandals for an effortlessly chic look! Exaggerated notch collar; Frayed cap sleeves. Storm flap at back. Self-tie belted waist; Dual slip pockets at hips. Loose silhouette. Partially lined. Size S measures approximately 24¾'' long from natural waist; May vary by size. Shell: 100% Linen; Lining: 100% Cotton; Dry Clean; Imported;
  • Pre-owned Theory Leather Vest
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    Pre-owned Theory Leather Vest
    Brown Theory leather vest with tonal stitching throughout, four front flap pockets, two front zip pockets, belt at waist and front zip closure.
  • Pre-owned Theory Vest
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    Pre-owned Theory Vest
    Vests by Theory at Tradesy
  • Pre-owned Theory Cream Wool Long Blazer Vest
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    Pre-owned Theory Cream Wool Long Blazer Vest
    Size 10 Cream Long Blazer Vest Body 99% Virgin Wool 1% Elastane 100% Polyester lining Button and clip in closure Faux pockets Shoulder to Shoulder: 20" Bust: 36-37" Waist: 28-29" Hips: 40" Total Length: 28.5"
  • Theory Adar Vest in Seasons
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    Theory Adar Vest in Seasons
    FIT: This vest is a seasonal alternative to the suit, with a double lapel and double pockets. FABRIC: Made from Seasons, a versatile viscose wool suiting with a touch of stretch. HOW TO WEAR IT: Chic paired with your favorite Theory pant. 75% Viscose, 20% Virginwool, 5% Elastane. Standard notched lapels. Dry clean only.
  • Theory Andreet open-knit pima cotton and cashmere-blend sweater vest
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    Theory Andreet open-knit pima cotton and cashmere-blend sweater vest
    Theory black Andreet sweater vest. Open-knit pima cotton and cashmere-blend. Ribbed trims, side slit. Slips on. 85% pima cotton, 15% cashmere. Dry clean. Fits true to size, take your normal size. Cut for a loose fit. Mid-weight knit.
  • Pre-owned Theory Vest
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    Pre-owned Theory Vest
    Black Theory vest with dual slit pockets and button closures at front.
  • Theory Tweed Guided Eldo Vest
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    Theory Tweed Guided Eldo Vest
    Tweed Guided Eldo Vest Raw-edged tweed in a striking pattern shapes this tailored vest for a modern take on menswear-inspired styling. Notched collar. Sleeveless. Front and back princess seams. Front welt pocket at chest. Front besom pockets at hips. About 26" from shoulder to hem. Cotton/polyester/acrylic. Dry clean. Made in USA of Italian fabric. - Color: Black-White - Sizes: 6,12,0,2,4
  • Theory Adar Waistcoat
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    Theory Adar Waistcoat
    Navy blue virgin wool blend 'Adar' waistcoat from Theory.
  • Pre-owned Theory Hoodie Vest
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    Pre-owned Theory Hoodie Vest
    Vests by Theory at Tradesy
  • THEORY Adar stretch-crepe waistcoat
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    THEORY Adar stretch-crepe waistcoat
    Theory stretch-crepe waistcoat. Slips on. Notch lapels, sleeveless, open front, two jet pockets at front, double vents at back hem, partially lined. 75% viscose, 20% wool, 5% elastane; lining 100% polyester. Dry clean. True to size. Size 8: Length 28" Model is 5ft 10" and wears a size 8. Made in USA.
  • Pre-owned Theory Vest
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    Pre-owned Theory Vest
    Vests by Theory at Tradesy
  • Pre-owned Theory Leather Vest
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    Pre-owned Theory Leather Vest
    Black leather Theory vest with multiple pockets at front, tie at waist and zip closure at front.
  • Pre-owned Theory Suede Vest
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    Pre-owned Theory Suede Vest
    Tan suede Theory vest with darts throughout, slit pockets at sides, shearling interior and zip closure at front.
  • Pre-owned Theory Rabbit Fur Collar Concord Vest
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    Pre-owned Theory Rabbit Fur Collar Concord Vest
    Vests by Theory at Tradesy
  • Theory Samison Vest in Speed Leather
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    Theory Samison Vest in Speed Leather
    A lighter silhouette lends a feminine delicacy to this tough essential. Made from cow leather. 100% Cow leather. Measurement from size s. Center back length: 20 1/2. Across shoulder: 15 1/2 inches. Armhole: 19 inches. Center front zipper: 17 inches. Dry clean only.
  • Pre-owned Theory Fur Vest
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    Pre-owned Theory Fur Vest
    Brown Theory fur vest with dual slit pockets and hook closure at front.
  • Theory Nieto Vest in Debut
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    Theory Nieto Vest in Debut
    A fresh approach to the blazer-inspired jacket. Features oversized lapels and an adjustable self-sash for an eye-catching effect. Made from fluid stretch viscose. 98% Viscose, 2% Elastane. Measurement from size 4. Center back length: 27 1/4 inches. Across shoulder: 16 1/4 inches. Dry clean only.
  • Pre-owned Theory 100% Cashmere Long Vest
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    Pre-owned Theory 100% Cashmere Long Vest
    Vests by Theory at Tradesy
  • THEORY Eldora checked waistcoat
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    THEORY Eldora checked waistcoat
    Theory woven waistcoat. Slips on. Open-front, peak lapels, sleeveless, two jet pockets at front, all-over woven checked pattern, central split at back, frayed arm holes. 49% cotton, 35% polyester, 16% acrylic; lining 100% polyester. Dry clean. True to size. Size 8: Length 28" Model is 5ft 10" and wears a size 8. Made in USA.
  • Theory Samison Moto Leather Vest
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    Theory Samison Moto Leather Vest
    Theory. Samison Moto Leather Vest. Theory Samison vest in smooth leather. Notch collar; front zip. Wide shoulder coverage. Front zip pocket. Belted hem. Imported.
  • Pre-owned Theory Theyskens' Leather Vest
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    Pre-owned Theory Theyskens' Leather Vest
    Vests by Theory at Tradesy
  • Theory Adar Open-Front Suiting Vest
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    Theory Adar Open-Front Suiting Vest
    Theory. Adar Open-Front Suiting Vest. Theory Adar vest in Seasons charmeuse. Approx. measurements: 10" from shoulder to hem, 29.5"L from center back to hem. Notch collar; open front. Wide shoulder coverage. Side pockets. Loose fit. 7.5"L slit. Viscose/virgin wool/spandex. Dry clean. Made in USA of imported material.
  • Pre-owned Theory Vest
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    Pre-owned Theory Vest
    Vests by Theory at Tradesy
  • Theory Eldora Vest in Guided
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    Theory Eldora Vest in Guided
    Peaked lapels frame the casual, open placket on this unique sleeveless jacket. Made from a cotton blend. 49% Cotton, 35% Polyester, 16% Acrylic. Measurements taken from a size 4. Center back length: 26 1/2 inches. Across shoulders: 15 1/2 inches. Dry clean only.
  • Pre-owned Theory Vest
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    Pre-owned Theory Vest
    Vests by Theory at Tradesy
  • Pre-owned Theory Trench Sweater Vest
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    Pre-owned Theory Trench Sweater Vest
    Vests by Theory at Tradesy
  • Pre-owned Theory Gold The Vest
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    Pre-owned Theory Gold The Vest
    Outerwear by Theory at Tradesy
  • Pre-owned Theory Vest
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    Pre-owned Theory Vest
    Vests by Theory at Tradesy
  • Pre-owned Theory Suede Vest
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    Pre-owned Theory Suede Vest
    Tan suede Theory vest with gunmetal hardware, seam accents throughout and zip closure at front.
  • THEORY Visterna faux-fur gilet
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    THEORY Visterna faux-fur gilet
    Theory faux-fur gilet. Concealed zip and popper fastenings at front. Funnel collar, sleeveless, two welt pockets at front, fully lined, lightly padded. 51% acrylic, 37% wool, 12% nylon; lining 100% polyester; 100% polyester. Dry clean. True to size. Size small: Length 33" Model is 5ft 10" and wears a size small.
The End