A great midweight layer for cold-weather, this mock neck sweater features FreeHeat® tech for extra warmth while you're out adventuring. The recycled blend of polyester includes added stretch for unrestricted winter wandering.NOTE ON SIZING: This garment runs large. Size down for a true fit.Models shown are 5'9" to 5'11" tall, wearing size S/4, L/12, or XXL/18.