Flat back rib fabric, stand-up collar with 1/4 zip, herringbone necktape, ribbed cuffs on sleeve, and borders with elastane, SBS zipper, high-quality ribbed interlock material, 40° washable, not suitable for tumble drying. 365g/m², 80% double preshrunk combed ringspun cotton, 20% polyester, silicone treatment, interlock