Every well-dressed man's best friend is a casual jacket from Theory. Theory walnut cotton 'Right.Sheets' two button blazer. Available in - 40 R, 44 R

Theory makes it easy to express a unique personal style without lacking sophistication. Theory black pinstriped 'Decatur Flavor' 2-button blazer.

Theory makes it easy to express a unique personal style without lacking sophistication. Theory coal pinstripe cotton 'Xylo.Finch' 2-button blazer. Available in - 46 R

Theory makes it easy to express a unique personal style without lacking sophistication. Theory black 'Brodie Component' 2-button blazer. Available in - 42 R, 44 R, 40 R, 38 R

Theory makes it easy to express a unique personal style without lacking sophistication. Theory black sateen 'Bond WT.Trade' 1-button blazer. Available in - 36 R, 40 R, 46 R

Theory makes it easy to express a unique personal style without lacking sophistication. Theory grey melange wool 'Sharp U.Code' 2-button blazer. Available in - 38 R, 44 R

Theory makes it easy to express a unique personal style without lacking sophistication. Theory charcoal striped wool 'Shaw.Course' 2-button blazer. Available in - 42 R, 44 R

Theory makes it easy to express a unique personal style without lacking sophistication. Theory light grey cotton 'Right.Pure' 2-button blazer. Available in - 38 R, 44 R, 36 R

Theory makes it easy to express a unique personal style without lacking sophistication. Theory nickel striped 'Sharp.Locomotive' 2-button blazer. Available in - 38 R, 42 R, 46 R

Theory makes it easy to express a unique personal style without lacking sophistication. Theory eclipse sateen 'Bond WT.Trade' 1-button blazer.

Theory never fails to make menswear that's comfortable, stylish, and expertly crafted. Theory ivory cotton 'Right.Sheets' 2-button blazer.

Theory makes it easy to express a unique personal style without lacking sophistication. Theory slate pinstriped 'Sharp.Elmira' 2-button blazer.

Theory makes it easy to express a unique personal style without lacking sophistication. Theory black wool-cotton 'Xylo P.Combat' 2-button blazer. Available in - 38 R, 40 R, 42 R

Theory makes it easy to express a unique personal style without lacking sophistication. Theory charcoal plaid 'Shaw Structure' 2-button blazer.

Theory makes it easy to express a unique personal style without lacking sophistication. Theory black sateen 'Xylo.Quest' 2-button blazer. Available in - 36 R, 46 R