What's something that awesome warm and cold days on the mountain share in common? Well, an awesome base layer. Despite the temps, putting on a base layer is a key decision. They're breathable and moisture-wicking when temps rise, and help keep you warm when they drop. Throw on the Armada Contra Base Layer Top and reap the benefits of a 4-way stretch moisture-wicking fabric, flat seams that prevent chafing, and UPF+ 50 protection.