The Tommy John Second Skin Stay-Tucked Crew Neck T-Shirt - 2 Pack 1003724 combines all the best comfort improvements with a traditional undershirt design to give you a silky weight tee that's breathable, tag-free, has adaptable stretch and stays tucked in. Tommy John's Second Skin Stay-Tucked Crew Neck T-Shirt - 2 Pack is made of modal/spandex.