This mid-weight layering piece delivers maximum warmth without weighing you down, even a little. Our men's UA based 3.0 crew was made for one thing-- extreme cold. It features UA signature cold gear fabric, built into a unique grid pattern that traps heat, dries incredibly fast, and maintains your core temperature better than ever. But it's not just about keeping you warm-- this crew's raglan sleeves and ergonomically placed flat lock seams keep you mobile and comfortable, so you're ready to ski, snowboard, or get into whatever else you've got planned this season. And just to keep things civilized, we've added anti-odor protection for unbeatable freshness. It's official-- cold weather doesn't stand a chance when you've got the men's US based 3.0 crew in your arsenal.