Theory Lanai Wool Blazer. Theory has converted a classic piece into a fashion statement with this elegant tweed blazer. The grey and bright lime green stitching gives this Theory jacket a fresh summer twist. The open front and welt pockets can be perfectly paired with your skinny jeans and a white tee for a cool transitional look. 60% Acrylic, 25% Wool, 9% Polyester, 4% Cotton, 1% Elastane, 1% Nylon. Lining 100% Cotton. Dry Clean Recommended. Model wears size US 2.