- 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 48 productsfrom 16 of our partner stores
Sort by: Newest
48 results
£315
£223
£444
£133
£444
£124
£566
£432
£312
£230
£240
£110
£304
£152
£304
£152
£329
£177
£329
£177
£466
£148
£444
£181
£546
£421
£567
£350
£369
£221
£335
£144
£685
£267
£537
£348
£560
£241
£369
£107
£351
£326
£270
Out of stock
£453
Out of stock
£186
£339
£273
Out of stock
£233
£100
Out of stock
£277
Out of stock