In Men
In Women In Beauty In Men In Home

Theory Underwear for Men, Fall 2020

brand: theory
Sort byRelevance
Relevance Highest Price Lowest Price New arrivals Discount
View4 per row
3 per row 4 per row 6 per row
Topstitching Jersey T-Shirt - Black Multi - Size XL

Theory

Topstitching Jersey T-Shirt - Black Multi - Size XL

$85

At Saks Fifth Avenue

Everyday tee with a bound neck and twin needle topstitching on the sleeves and hem. Made of signature tonal modal jersey, which is softer, smoother, and stronger than cotton. Crewneck Short sleeves Pullover style Modal/polyester Machine wash Imported SIZE & FIT Regular fit About 28" from shoulder to hem. Men Adv Contemp - Theory > Theory > Saks Fifth Avenue > Barneys. Theory. Color: Black Multi. Size: XL. buy from Saks Fifth Avenue
Lassen Crewneck Sweater

Theory

Lassen Crewneck Sweater

$245 $184

At Nordstrom

A thin contrasting line at the collar, cuffs and hem heightens the contemporary appeal of this lightweight wool and cotton sweater. Style Name: Theory Lassen Crewneck Sweater. Style Number: 6108929. Available in stores. buy from Nordstrom
Claey V-Neck T-Shirt - Ivory - Size XS

Theory

Claey V-Neck T-Shirt - Ivory - Size XS

$95

At Saks Fifth Avenue

Sleek silk-blend tee with tonal stitching V-neck Short sleeves Silk/cotton Dry clean Imported. Men Adv Contemp - Theory > Theory > Saks Fifth Avenue > Barneys. Theory. Color: Ivory. Size: XS. buy from Saks Fifth Avenue
Racer T-Shirt

Theory

Racer T-Shirt

$125

At East Dane

Fabric: Lightweight jersey Crew neckline and short sleeves Marbled print Shell: 100% cotton Wash cold Imported, Turkey Measurements Measurements from size L Length: 28in / 71cm Chest: 45.75in / 116cm buy from East Dane
Topstitching Jersey T-Shirt - Vervain - Size Small

Theory

Topstitching Jersey T-Shirt - Vervain - Size Small

$75

At Saks Fifth Avenue

This essential tee is designed with a bound neck and double needle topstitching on the sleeves and hem. Cut in a regular fit from airy slub cotton, this short-sleeve tee comfortably layers under sweaters and jackets. Crewneck Short sleeves Pullover style Cotton Machine wash Imported SIZE & FIT Regular fit About 28" from shoulder to hem. Men Adv Contemp - Theory > Theory > Saks Fifth Avenue > Barneys. Theory. Color: Vervain. Size: Small. buy from Saks Fifth Avenue
Milan T-Shirt

Theory

Milan T-Shirt

$125

At East Dane

Fabric: Lightweight fine knit Ribbed crew neck Short sleeves Shell: 100% cotton Wash cold Imported, Turkey Measurements Measurements from size L Length: 28.25in / 72cm Chest: 44in / 112cm buy from East Dane
Topstitching Jersey T-Shirt - Smoke - Size Medium

Theory

Topstitching Jersey T-Shirt - Smoke - Size Medium

$75

At Saks Fifth Avenue

This essential tee is designed with a bound neck and double needle topstitching on the sleeves and hem. Cut in a regular fit from airy slub cotton, this short-sleeve tee comfortably layers under sweaters and jackets. Crewneck Short sleeves Pullover style Cotton Machine wash Imported SIZE & FIT Regular fit About 28" from shoulder to hem. Men Adv Contemp - Theory > Theory > Saks Fifth Avenue > Barneys. Theory. Color: Smoke. Size: Medium. buy from Saks Fifth Avenue
T-shirt In Black Cotton

Theory

T-shirt In Black Cotton

$131

At Italist

T-Shirt in black cotton, round neck, short sleeves, Model is 187 cm and wears size MComposition: Cotton buy from Italist
Topstitching Jersey T-Shirt - White - Size Medium

Theory

Topstitching Jersey T-Shirt - White - Size Medium

$85

At Saks Fifth Avenue

Everyday tee with a bound neck and twin needle topstitching on the sleeves and hem. Made of signature tonal modal jersey, which is softer, smoother, and stronger than cotton. Crewneck Short sleeves Pullover style Modal/polyester Machine wash Imported SIZE & FIT Regular fit About 28" from shoulder to hem. Men Adv Contemp - Theory > Theory > Saks Fifth Avenue > Barneys. Theory. Color: White. Size: Medium. buy from Saks Fifth Avenue
Linen-Blend T-Shirt - Men - Neutrals

Theory

Linen-Blend T-Shirt - Men - Neutrals

$115

At Mr Porter

We try not to overuse the word 'essential', but in the case of Theory's tee, there's really no other way to put it. Cut for a regular fit, it's woven from lightweight linen fibres with just the right amount of stretch. The off-white hue will sit nicely alongside other neutral tones. Wear it with: Theory Trousers, Common Projects Sneakers. buy from Mr Porter
T-shirts

Theory

T-shirts

$94

At yoox.com

THEORY T-shirts. jersey, no appliqués, basic solid color, round collar, short sleeves, no pockets. 100% Organic cotton buy from yoox.com
Tie-Front T-Shirt - Black - Size XS

Theory

Tie-Front T-Shirt - Black - Size XS

$120

At Saks Fifth Avenue

A fitted crewneck shortsleeve tee with a tie-front. Crewneck Short sleeves Tie hem detail Cotton Machine wash Imported SIZE & FIT About 24" from shoulder to hem Model shown is 5'10" (177cm) wearing US size Small. Contemporary Sp - Theory Sportswear > Theory > Saks Fifth Avenue > Barneys. Theory. Color: Black. Size: XS. buy from Saks Fifth Avenue
T-shirts

Theory

T-shirts

$99

At yoox.com

THEORY T-shirts. jersey, no appliqués, basic solid color, round collar, short sleeves, no pockets, stretch. 70% Viscose, 25% Polyamide, 5% Elastane buy from yoox.com
Ace Relay Jersey T-Shirt - White - Size XS

Theory

Ace Relay Jersey T-Shirt - White - Size XS

$145

At Saks Fifth Avenue

Short-sleeve tee made with compact viscose and nylon blend ponte with stretch for ease of movement. Viscose is from Lenzing, which uses sustainably-produced wood and manufactures as environmentally friendly as possible. Crewneck Short sleeves Pullover style Viscose/polyamide/elastane Hand wash Made in Portugal SIZE & FIT Standard fit About 29" from shoulder to hem. Men Adv Contemp - Theory > Theory > Saks Fifth Avenue > Barneys. Theory. Color: White. Size: XS. buy from Saks Fifth Avenue
Precise Pima Cotton T-Shirt

Theory

Precise Pima Cotton T-Shirt

$95 $40

At Saks OFF 5TH

Minimalist tee cut from Pima cotton jersey with a luxuriously soft handfeel. Crewneck. Short sleeves. Pullover style. Pima cotton. Machine wash. Imported. SIZE & FIT. About 28" from shoulder to hem. buy from Saks OFF 5TH
Tie-Hem T-Shirt - White - Size Small

Theory

Tie-Hem T-Shirt - White - Size Small

$120

At Saks Fifth Avenue

Chic crewneck tee with a flirty tie detail at the hem. Crewneck Short sleeves Tie hem Organic cotton Machine wash Imported SIZE & FIT About 25" from shoulder to hem Model shown is 5'10" (177cm) wearing US size Small. Contemporary Sp - Theory Sportswear > Theory > Saks Fifth Avenue > Barneys. Theory. Color: White. Size: Small. buy from Saks Fifth Avenue
Swim trunks

Theory

Swim trunks

$84 $59

At yoox.com

THEORY Swim trunks. techno fabric, no appliqués, two-tone, front closure, multipockets, drawstring closure, internal slip, stretch. 90% Nylon, 10% Elastane buy from yoox.com
Claey V Plaito T-shirt In Black Silk

Theory

Claey V Plaito T-shirt In Black Silk

$155

At Italist

Claey v plaito T-Shirt in black silk, V neck, short sleeves, Model is 187 cm and wears size LComposition: Silk buy from Italist
T-shirts

Theory

T-shirts

$54

At yoox.com

THEORY T-shirts. jersey, no appliqués, two-tone, round collar, short sleeves, no pockets. 100% Supima Cotton buy from yoox.com
Sylvain Slim Fit Button-Up Dress Shirt

Theory

Sylvain Slim Fit Button-Up Dress Shirt

$165

At Nordstrom

Sharp tailoring and a trim fit distinguish a streamlined woven Italian cotton shirt equally suitable for days at the office or upscale weekend get-togethers. Style Name: Theory Sylvain Slim Fit Button-Up Dress Shirt. Style Number: 5141156. Available in stores. buy from Nordstrom
T-shirts

Theory

T-shirts

$59

At yoox.com

THEORY T-shirts. jersey, no appliqués, basic solid color, round collar, short sleeves, no pockets. 100% Cotton buy from yoox.com
Gethin Men's Pocket T-Shirt

Theory

Gethin Men's Pocket T-Shirt

$165

At Nordstrom

A glossy chest pocket adds shimmer and interest to a solid cotton-blend T-shirt made with a touch of stretch and a fit that's great layered or on its own. Style Name: Theory Gethin Men's Pocket T-Shirt. Style Number: 6108939. Available in stores. buy from Nordstrom
T-shirts

Theory

T-shirts

$94

At yoox.com

THEORY T-shirts. jersey, no appliqués, basic solid color, round collar, short sleeves, no pockets. 100% Organic cotton buy from yoox.com
ALREADY SOLD OUT
Braghe Regular Fit Zip Hooded Cardigan

SOLD OUT

Theory

Braghe Regular Fit Zip Hooded Cardigan

$245 $122

At Nordstrom

Striped banding traces the contours of a casual, comfortable zip hoodie knit in a textured stripe with sporty two-tone coloring. Style Name: Theory Braghe Regular Fit Zip Hooded Cardigan. Style Number: 5847804. Available in stores. buy from Nordstrom
T-shirts

SOLD OUT

Theory

T-shirts

$64

At yoox.com

THEORY T-shirts. jersey, shaded effect, no appliqués, two-tone, round collar, short sleeves, no pockets. 100% Supima Cotton buy from yoox.com
Phanos Crewneck Sweater

SOLD OUT

Theory

Phanos Crewneck Sweater

$245

At Nordstrom

A raised thermal stitch adds subtle texture to a lightweight cotton sweater that's a handsome style staple. Style Name: Theory Phanos Crewneck Sweater. Style Number: 6067838. Available in stores. buy from Nordstrom
Sylvain Slim Fit Button-Up Dress Shirt

SOLD OUT

Theory

Sylvain Slim Fit Button-Up Dress Shirt

$165 $66

At Nordstrom

Sharp tailoring and a trim fit distinguish a streamlined woven Italian cotton shirt equally suitable for days at the office or upscale weekend get-togethers. Style Name: Theory Sylvain Slim Fit Button-Up Dress Shirt. Style Number: 5141156 6. Available in stores. buy from Nordstrom
Udeval Breach Slim Fit Zip Sweater

SOLD OUT

Theory

Udeval Breach Slim Fit Zip Sweater

$225 $112

At Nordstrom

A timeless zip-front sweater features a distinctive raised stitch that gives the design a cool, tonal texture. Style Name: Theory Udeval Breach Slim Fit Zip Sweater. Style Number: 5648011. Available in stores. buy from Nordstrom
Guinard Fragmented Stripe Crewneck Sweater

SOLD OUT

Theory

Guinard Fragmented Stripe Crewneck Sweater

$255 $96

At Nordstrom

Chalky pinstripes emphasize the lightweight, slim construction of a sweater crafted with soft linen and finished with gradient spacing down the cuffs and hem. Style Name: Theory Guinard Fragmented Stripe Crewneck Sweater. Style Number: 5991185. Available in stores. buy from Nordstrom
Guinard Fragmented Stripe Crewneck Sweater

SOLD OUT

Theory

Guinard Fragmented Stripe Crewneck Sweater

$255 $128

At Nordstrom

Chalky pinstripes emphasize the lightweight, slim construction of a sweater crafted with soft linen and finished with gradient spacing down the cuffs and hem. Style Name: Theory Guinard Fragmented Stripe Crewneck Sweater. Style Number: 5991185. Available in stores. buy from Nordstrom
Irving Short Sleeve Button-Up Shirt

SOLD OUT

Theory

Irving Short Sleeve Button-Up Shirt

$175 $88

At Nordstrom

Polka dots pepper a classic button-down shirt cut from crisp cotton and finished with a smart spread collar and French placket. Style Name: Theory Irving Short Sleeve Button-Up Shirt. Style Number: 6026716 1. Available in stores. buy from Nordstrom
Sylvain Slim Fit Button-Up Dress Shirt

SOLD OUT

Theory

Sylvain Slim Fit Button-Up Dress Shirt

$165

At Nordstrom

Sharp tailoring and a trim fit distinguish a streamlined woven Italian cotton shirt equally suitable for days at the office or upscale weekend get-togethers. Style Name: Theory Sylvain Slim Fit Button-Up Dress Shirt. Style Number: 5141156 6. Available in stores. buy from Nordstrom
Murray Gingham Long Sleeve Button-Up Sport Shirt

SOLD OUT

Theory

Murray Gingham Long Sleeve Button-Up Sport Shirt

$225 $90

At Nordstrom

Fabricated in an ultralightweight stretch fabric, this gingham shirt is as comfortable as it is stylish. Style Name: Theory Murray Gingham Long Sleeve Button-Up Sport Shirt. Style Number: 6026715. Available in stores. buy from Nordstrom
Hilles Standard Fit Crewneck Cashmere Sweater

SOLD OUT

Theory

Hilles Standard Fit Crewneck Cashmere Sweater

$325 $130

At Nordstrom

Color-blocked paneling marks the sleeves and yoke of a sporty cashmere sweater designed to look equally great layered or on its own. Style Name: Theory Hilles Standard Fit Crewneck Cashmere Sweater. Style Number: 5858655. Available in stores. buy from Nordstrom
Sylvain Allis Slim Fit Button-Up Shirt

SOLD OUT

Theory

Sylvain Allis Slim Fit Button-Up Shirt

$185 $76

At Nordstrom

A two-tone cotton weave keeps the look smart and distinctive in a sport shirt designed simply with a point collar and crisp French placket. Style Name: Theory Sylvain Allis Slim Fit Button-Up Shirt. Style Number: 5925615. Available in stores. buy from Nordstrom
Ollis Stripe Crewneck Wool Sweater

SOLD OUT

Theory

Ollis Stripe Crewneck Wool Sweater

$275 $110

At Nordstrom

Fine stripes ladder up a sweater knit from soft merino wool with a crewneck and a look that's great layered or on its own. Style Name: Theory Ollis Stripe Crewneck Wool Sweater. Style Number: 5925624. Available in stores. buy from Nordstrom
Riland Crewneck Pique Sweatshirt

SOLD OUT

Theory

Riland Crewneck Pique Sweatshirt

$185 $75

At Nordstrom

Lightly peached cotton pique brings sporty vibes and soft texture to a pullover done with a close fit that layers easily and looks great on its own. Style Name: Theory Riland Crewneck Pique Sweatshirt. Style Number: 6026724. Available in stores. buy from Nordstrom
T-shirts

SOLD OUT

Theory

T-shirts

$109

At yoox.com

THEORY T-shirts. jersey, contrasting applications, solid color, round collar, short sleeves, no pockets. 100% Cotton buy from yoox.com
Regal Tipped Wool Crewneck Sweater

SOLD OUT

Theory

Regal Tipped Wool Crewneck Sweater

$225 $90

At Nordstrom

Slim tipping stripes ring the collar, cuffs and hem of a sweater made from fine-gauge merino wool in a lightweight fit designed for comfort layered or on its own. Style Name: Theory Regal Tipped Wool Crewneck Sweater. Style Number: 5925758. Available in stores. buy from Nordstrom
Ollis Stripe Crewneck Wool Sweater

SOLD OUT

Theory

Ollis Stripe Crewneck Wool Sweater

$275 $110

At Nordstrom

Fine stripes ladder up a sweater knit from soft merino wool with a crewneck and a look that's great layered or on its own. Style Name: Theory Ollis Stripe Crewneck Wool Sweater. Style Number: 5925624. Available in stores. buy from Nordstrom
Sylvain Allis Slim Fit Button-Up Shirt

SOLD OUT

Theory

Sylvain Allis Slim Fit Button-Up Shirt

$185 $76

At Nordstrom

A two-tone cotton weave keeps the look smart and distinctive in a sport shirt designed simply with a point collar and crisp French placket. Style Name: Theory Sylvain Allis Slim Fit Button-Up Shirt. Style Number: 5925615. Available in stores. buy from Nordstrom
Sylvain Slim Fit Stripe Button-Up Shirt

SOLD OUT

Theory

Sylvain Slim Fit Stripe Button-Up Shirt

$225 $113

At Nordstrom

Thin stripes whisper their way onto to a slim-fitting sport shirt cut from an Italian cotton blend. Style Name: Theory Sylvain Slim Fit Stripe Button-Up Shirt. Style Number: 5966955. Available in stores. buy from Nordstrom
Topstitching Jersey T-Shirt - Vervain - Size XXL

SOLD OUT

Theory

Topstitching Jersey T-Shirt - Vervain - Size XXL

$75

At Saks Fifth Avenue

This essential tee is designed with a bound neck and double needle topstitching on the sleeves and hem. Cut in a regular fit from airy slub cotton, this short-sleeve tee comfortably layers under sweaters and jackets. Crewneck Short sleeves Pullover style Cotton Machine wash Imported SIZE & FIT Regular fit About 28" from shoulder to hem. Men Adv Contemp - Theory > Theory > Saks Fifth Avenue > Barneys. Theory. Color: Vervain. Size: XXL. buy from Saks Fifth Avenue
T-shirt In White Cotton

SOLD OUT

Theory

T-shirt In White Cotton

$137

At Italist

T-Shirt in white cotton, round neck, short sleeves, Model is 187 cm and wears size MComposition: Cotton buy from Italist
Irving Rhombus Slim Fit Short Sleeve Button-Up Shirt

SOLD OUT

Theory

Irving Rhombus Slim Fit Short Sleeve Button-Up Shirt

$175 $70

At Nordstrom

A tiny geo print neatly patterns a sport shirt cut smartly from crisp stretch cotton with short sleeves and a point collar keeping the look casual. Style Name: Theory Irving Rhombus Slim Fit Short Sleeve Button-Up Shirt. Style Number: 5925611. Available in stores. buy from Nordstrom
Sylvain Slim Fit Button-Up Dress Shirt

SOLD OUT

Theory

Sylvain Slim Fit Button-Up Dress Shirt

$165

At Nordstrom

Sharp tailoring and a trim fit distinguish a streamlined woven Italian cotton shirt equally suitable for days at the office or upscale weekend get-togethers. Style Name: Theory Sylvain Slim Fit Button-Up Dress Shirt. Style Number: 5141156 6. Available in stores. buy from Nordstrom
Regal Tipped Wool Crewneck Sweater

SOLD OUT

Theory

Regal Tipped Wool Crewneck Sweater

$225 $90

At Nordstrom

Slim tipping stripes ring the collar, cuffs and hem of a sweater made from fine-gauge merino wool in a lightweight fit designed for comfort layered or on its own. Style Name: Theory Regal Tipped Wool Crewneck Sweater. Style Number: 5925758. Available in stores. buy from Nordstrom
Braghe Regular Fit Zip Hooded Cardigan

SOLD OUT

Theory

Braghe Regular Fit Zip Hooded Cardigan

$245 $122

At Nordstrom

Striped banding traces the contours of a casual, comfortable zip hoodie knit in a textured stripe with sporty two-tone coloring. Style Name: Theory Braghe Regular Fit Zip Hooded Cardigan. Style Number: 5847804. Available in stores. buy from Nordstrom