Bare knows what gets cold on your body and builds its suits and suit components with that in mind. This Bare 7mm Arctic Vest is no exception to the rule. Vest is constructed of 7mm high density nylon 2 neoprene rubber with Nylon1S arm gasket style seals for super warmth. To ease donning and doffing the vest comes equipped with a heavy duty front zipper. So if warm is what you want look no further.