Majority are 50/50 wool/polyester blend with some exceptions:
Jack London Men's Navy Linen Suit Jacket - Navy, 46/48/50/52/54
Material: 100% Linen
Jack London Men's Leeds Suit Jacket - Charcoal, 46/48/50/52/56/58
Material: 70% Wool, 30% Polyester
Is the catch you can't get matching pants?