20288128 Filson Men's Waffle Knit Thermal Crew-Light Gray Heather The Waffle Knit Thermal Crewneck is knitted with thick Peruvian cotton blended with a bit of polyester. Soft and comfortable against the skin, the waffele-knit construction traps a layer of warm air for exceptional thermal retention. Rib-knit cuffs stay in place for easy layering. Classic waffle-knit construction Rib-knit collar and cuffs Made with a soft Peruvian cotton blend Long-staple cotton fibers Excellent thermal retention and breathability Fit Intended fit is relaxed and non-binding Fabric 12 oz. | 93% Cotton / 7% Polyester Product Care Machine wash cold with like colors Tumble dry low heat Warm iron, if needed Can be dry-cleaned