4.2 oz., 32 single; 52% Airlume combed ringspun cotton, 48% polyester; Athletic Heather: 90% Airlume combed and ring-spun cotton, 10% polyester; Black Heather CVC: 90% Airlume combed and ring-spun cotton, 10% poly; Dark Grey Heather and Deep Heather: 52% Airlume combed and ring-spun cotton, 48% polyester; Heather Prism Colors: 99% Airlume combed and ring-spun cotton, 1% polyester; Heathered texture; Crewneck; Sideseamed; Relaxed fit; Due to the specialized washing process, each shirt is unique;