Assembly Label, Denim Overshirt Ecru. A Cream Denim Overshirt is a staple in every wardrobe. Our overshirt is made using robust 100% cotton denim in classic Ecru Denim. This casual overshirt has a collar, chest pocket, box pleat and buttoned cuffs and is cut for a relaxed fit, which makes it easy to layer over tees and sweaters.