65% acrylic, 35% polyester. Fleece fabric. Chest pocket. Ribbed collar, cuffs and hem. Regular fit. This Lancaster Crewneck from Universal Works is whats known in the biz as a certified fleece fantasia its made from some of that soft-brush fluffy fleece stuff thats pretty much the wearable equivalent of wearing a hug, which should keep you toastier than an electrical fire at the Warburtons factory in even the most chilly of climates.