Polartherm base layer fleece is a performance warm wear garment. The micro-denier construction provides added wind and water resistance. Fabric brushed on both sides for additional warmth. Excellent base layer in a base layer warming system or can be worn as an outer garments. Moisture management system keeps you dry. Relaxed fit. Flatlock stitching ensures comfortable fit. Reusable packaging. 100% polyester. Made in Canada.