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Theory

Founded in 1997 and based in New York, Theory makes sophisticated and comfortable modern clothing – “clean silhouettes, quality, craftsmanship and fit” are the focus. Make this your go-to brand for tailoring and separates that are cool but never obvious. 

Theory is included in our NET SUSTAIN edit for best practice in Animal Welfare. Find out more about NET SUSTAIN here.

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Filter109 Results
Theory
Cashmere hoodie
£375
Theory
Ribbed-knit space-dyed sweater
£300
Theory
Cropped space-dyed ribbed-knit flared pants
£300
Theory
Stretch-scuba leggings
£235
Theory
Belted faux fur-trimmed wool and cashmere-blend vest
£550
NET SUSTAIN
Theory
Double-breasted grain de poudre wool-blend blazer
£480
60% off
£192
REDUCED FURTHER
Theory
Cashair cashmere hoodie
£400
40% off
£240
LOW STOCK
Theory
Demitria crepe flared pants
£315
30% off
£221
LOW STOCK
Theory
Hammered-satin mini dress
£345
60% off
£138
REDUCED FURTHER
Theory
Crepe mini dress
£385
70% off
£116
REDUCED FURTHER
Theory
Twill wide-leg pants
£300
Theory
One-sleeve paneled ribbed-knit top
£300
Theory
One-sleeve paneled ribbed-knit top
£300
Theory Malinka belted cable-knit cashmere cardigan
Theory Malinka belted cable-knit cashmere cardigan
Theory
Malinka belted cable-knit cashmere cardigan
£450
Theory Space-dyed ribbed-knit cardigan
Theory Space-dyed ribbed-knit cardigan
Theory
Space-dyed ribbed-knit cardigan
£375
Theory Cashmere sweater
Theory Cashmere sweater
Theory
Cashmere sweater
£235
Theory Leenda space-dyed ribbed-knit top
Theory Leenda space-dyed ribbed-knit top
Theory
Leenda space-dyed ribbed-knit top
£250
Theory Belted silk-crepe mini dress
Theory Belted silk-crepe mini dress
Theory
Belted silk-crepe mini dress
£375
15% off applied at checkout
Theory Layered silk-crepe top
Theory Layered silk-crepe top
Theory
Layered silk-crepe top
£255
15% off applied at checkout
Theory Malinka belted cable-knit cashmere cardigan
Theory Malinka belted cable-knit cashmere cardigan
Theory
Malinka belted cable-knit cashmere cardigan
£450
Theory Belted wrap-effect checked silk-twill midi dress
Theory Belted wrap-effect checked silk-twill midi dress
Theory
Belted wrap-effect checked silk-twill midi dress
£375
Theory Stretch-jersey skinny pants
Theory Stretch-jersey skinny pants
Theory
Stretch-jersey skinny pants
£260
Theory Convertible draped two-tone wool and cashmere-blend coat
Theory Convertible draped two-tone wool and cashmere-blend coat
Theory
Convertible draped two-tone wool and cashmere-blend coat
£625
NET SUSTAIN
Theory Cotton-blend shirt
Theory Cotton-blend shirt
Theory
Cotton-blend shirt
£230
15% off applied at checkout
Theory Belted wool shirt
Theory Belted wool shirt
Theory
Belted wool shirt
£410
15% off applied at checkout
Theory Gathered satin-twill shirt dress
Theory Gathered satin-twill shirt dress
Theory
Gathered satin-twill shirt dress
£425
Theory Moving ribbed wool and cashmere-blend sweater
Theory Moving ribbed wool and cashmere-blend sweater
Theory
Moving ribbed wool and cashmere-blend sweater
£410
15% off applied at checkout
Theory Silk-blend satin top
Theory Silk-blend satin top
Theory
Silk-blend satin top
£235
15% off applied at checkout
Theory Ribbed-knit turtleneck sweater
Theory Ribbed-knit turtleneck sweater
Theory
Ribbed-knit turtleneck sweater
£275
15% off applied at checkout
Theory Silk-blend satin top
Theory Silk-blend satin top
Theory
Silk-blend satin top
£260
15% off applied at checkout
Theory Stretch-jersey blazer
Theory Stretch-jersey blazer
Theory
Stretch-jersey blazer
£495
Theory Admiral silk-trimmed crepe wrap dress
Theory Admiral silk-trimmed crepe wrap dress
Theory
Admiral silk-trimmed crepe wrap dress
£325
15% off applied at checkout
Theory Checked pleated twill skirt
Theory Checked pleated twill skirt
Theory
Checked pleated twill skirt
£350
Theory Cropped crepe straight-leg pants
Theory Cropped crepe straight-leg pants
Theory
Cropped crepe straight-leg pants
£290
15% off applied at checkout
Theory Cropped crepe straight-leg pants
Theory Cropped crepe straight-leg pants
Theory
Cropped crepe straight-leg pants
£290
15% off applied at checkout
Theory Draped silk-blend blouse
Theory Draped silk-blend blouse
Theory
Draped silk-blend blouse
£300
15% off applied at checkout
Theory Wool wide-leg pants
Theory Wool wide-leg pants
Theory
Wool wide-leg pants
£300
15% off applied at checkout
Theory Silk-blend shirt
Theory Silk-blend shirt
Theory
Silk-blend shirt
£260
15% off applied at checkout
Theory Crepe blazer
Theory Crepe blazer
Theory
Crepe blazer
£480
15% off applied at checkout
Theory Wool-blend jumpsuit
Theory Wool-blend jumpsuit
Theory
Wool-blend jumpsuit
£400
15% off applied at checkout
Theory Classic stretch-silk shirt
Theory Classic stretch-silk shirt
Theory
Classic stretch-silk shirt
£235
15% off applied at checkout
Theory Silk-blend shirt
Theory Silk-blend shirt
Theory
Silk-blend shirt
£260
Theory Cashmere sweater
Theory Cashmere sweater
Theory
Cashmere sweater
£235
Theory Cashmere sweater
Theory Cashmere sweater
Theory
Cashmere sweater
£235
Theory Cashmere sweater
Theory Cashmere sweater
Theory
Cashmere sweater
£250
15% off applied at checkout
Theory Treeca 2 cropped stretch-wool slim-leg pants
Theory Treeca 2 cropped stretch-wool slim-leg pants
Theory
Treeca 2 cropped stretch-wool slim-leg pants
£275
15% off applied at checkout
Theory Demitria 4 stretch-wool flared pants
Theory Demitria 4 stretch-wool flared pants
Theory
Demitria 4 stretch-wool flared pants
£290
15% off applied at checkout
Theory Wool-blend jumpsuit
Theory Wool-blend jumpsuit
Theory
Wool-blend jumpsuit
£400
15% off applied at checkout
Theory Ribbed-knit tank
Theory Ribbed-knit tank
Theory
Ribbed-knit tank
£275
60% off
£110
REDUCED FURTHER
Theory Ribbed stretch-jersey turtleneck top
Theory Ribbed stretch-jersey turtleneck top
Theory
Ribbed stretch-jersey turtleneck top
£125
15% off applied at checkout
Theory Ribbed wool and cashmere-blend midi dress
Theory Ribbed wool and cashmere-blend midi dress
Theory
Ribbed wool and cashmere-blend midi dress
£425
15% off applied at checkout
Theory Etiennette wool-blend grain de poudre blazer
Theory Etiennette wool-blend grain de poudre blazer
Theory
Etiennette wool-blend grain de poudre blazer
£440
Theory Henriet cropped ribbed-knit wide-leg pants
Theory Henriet cropped ribbed-knit wide-leg pants
Theory
Henriet cropped ribbed-knit wide-leg pants
£330
60% off
£132
REDUCED FURTHER
Theory Leenda ribbed-knit top
Theory Leenda ribbed-knit top
Theory
Leenda ribbed-knit top
£215
50% off
£108
Theory Asymmetric ribbed wool-blend sweater
Theory Asymmetric ribbed wool-blend sweater
Theory
Asymmetric ribbed wool-blend sweater
£275
40% off
£165
Theory Silk crepe de chine wide-leg pants
Theory Silk crepe de chine wide-leg pants
Theory
Silk crepe de chine wide-leg pants
£315
40% off
£189
REDUCED FURTHER
Theory Treeca cropped wool-twill tapered pants
Theory Treeca cropped wool-twill tapered pants
Theory
Treeca cropped wool-twill tapered pants
£340
50% off
£170
REDUCED FURTHER
Theory Crepe camisole
Theory Crepe camisole
Theory
Crepe camisole
£235
50% off
£118
REDUCED FURTHER
Theory Asymmetric ribbed wool-blend turtleneck top
Theory Asymmetric ribbed wool-blend turtleneck top
Theory
Asymmetric ribbed wool-blend turtleneck top
£235
40% off
£141
Theory Classic stretch-wool blazer
Theory Classic stretch-wool blazer
Theory
Classic stretch-wool blazer
£470
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