Hanz Extremity Wear is the American pioneer of WATERPROOF SOCKS & GLOVES that allow adventurers, athletes, and soldiers to perform at the highest level in challenging conditions.For 20 years, we have designed and manufactured our products entirely in the USA. Hanz Extremity Wear is a trade name of Danalco, Inc. Prior to 2013, we marketed our waterproof socks and gloves using the Sealskinz brand.