Our Waffle Knit Thermal Crewneck is knitted with thick Peruvian cotton blended with a bit of polyester. Soft and comfortable against the skin, the waffle-knit construction traps a layer of warm air for exceptional thermal retention. Rib-knit cuffs stay in place for easy layering. | Filson Waffle Knit Thermal Crewneck LtHthrGray Size XS