Size: 3XL Heavyweight Dark Heather Fabric Type 95% Polyester, 5% Spandex Care Instructions Machine Wash Closure Type Zipper Mock-neck collar with quarter length zipper; Made for extreme cold weather Fast dry wicks away sweat and rugged flex technology for ease of movement Smooth flat lock seams and tag less label enhance comfort Convenient zip pocket on chest and concealed thumb loops Fights odor This heavyweight Carhartt force base layer quarter-zip top for extreme cold weather Works as hard as you do to keep you warm, dry, and odor free on the coldest days. Smooth flat-lock seams and tag less label enhance comfort. Rugged flex fabric moves with you. Fast dry technology wicks away sweat. There's a convenient zip pocket on chest. The mock-neck collar with quarter length zipper unzips easily to release the heat when you're working hard. The concealed thumb loops keep your sleeves in place when you put on another layer.