- Helly Tech Performance is a waterproof and breathable membrane. Two hand pockets on the sides fastened with zip fastener. - Cuffs with adjustable Velcro straps. - Full-length zip fastening with snap-fastened storm flap. - Elevated collar guarantees additional protection against cold. - Three-part hood with drawstring for extra warmth and protection when needed. Waterproof refers to increased resistance to water. The product, when in contact with water, retains its properties. This guarantees greater comfort of use due to a lower level of permeability, but does not guarantee full water resistance. Measurements: 23" pit to pit 28" shoulder to hem