 | Core Flannel Pyjama Shirt. The Björn Borg Core Flannel Pyjama Shirt is made from soft 100% cotton in brushed flannel. It comes in a regular fit that’s designed to feel comfortable at home, with a collar and front buttons, a pocket on the left-hand side, and a woven logo label on the front. * Soft brushed cotton flannel * Classic checkered design * Comfortable regular fit * Collar and front buttons * Pocket on side... - Core Flannel Pyjama Shirt. |