S1 is a permanent MAN-TLE item. This is a loose-fitting, regular button-up shirt and features our army buttons threaded onto 8mm wide car seatbelt tape. This particular version is using a new variation on our signature MAN-TLE cloth. This original fabric is a light-weight, dense cotton cloth woven on wooden shuttle looms then coated in paraffin wax. As the base cloth is much finer than our usual wax fabric, it will soften quicker than usual too - with wearing and washing. The fabric is still initially stiff and windproof and has its own shape retaining memory.