- Home
- Theory
- Theory Clothing
- Theory Jackets
- Theory Blazers

Theory Blazers for Men
American fashion mogul Andrew Rosen launched Theory in 1997 as a popular women's collection, offering flattering tailored trousers and sleek shirts at contemporary price points. Today, having extended into menswear, the New York-based label offers well-made everyday essentials, from crisp white shirts to slick tailored jackets, which can be worn both casually and formally.
We've found 46 productsfrom 16 of our partner stores
Sort by: Newest
46 results
£436
£220
£436
£220
£566
£432
£312
£230
£240
£158
£304
£209
£304
£209
£329
£240
£329
£240
£436
£116
£546
£411
£515
£375
£359
£215
£335
£144
£685
£295
£537
£383
£270
Out of stock
£453
Out of stock
£177
£145
Out of stock
£186
£132
£339
£273
Out of stock
£205
Out of stock
£100
Out of stock