An ideal first whitewater paddle jacket, the semi-dry Vertigo has a neoprene neck gasket, and is made from waterproof, breathable XP 2-layer fabric. Woven face fabric treated with a DWR (durable water repellent) to prevent the fabric from becoming waterlogged so that it stays breathable. A hydrophobic, microporous polyurethane coating is applied on the inside. The pores are too small to allow water droplets to pass through, but large enough for water vapour to pass through to the outside air.