Unlined, knit blazer from Billy Reid in 38R. It was a gift from the brand, but I never wore because it was too small. FROM WEBSITE: Pairing the sillhouette of a suit jacket with the comfort and ease of a knit, this piece offers the best of both worlds. Thoughful finishing touches include patch pockets at the waist, textural raised Ottoman stitching, a self-locker loop, genuine dark horn buttons, and our signature heirloom clamshell at the left sleeve. It's a sport-inspired piece that is casual, lightweight, and the perfect layering piece you can easily dress up or down. This sport coat has an unstructured, modern cut.