These premium salopettes are designed for big days out‚ made from breathable XP three-layer fabric with tough four-layer 320D reinforced wear panels. The XP three-layer is flexible, tough, highly waterproof and breathable, constructed from supplex nylon six woven face fabric with a DWR (Durable Water Repellent) treatment that prevents the fabric from becoming waterlogged. The pores in the DWR material are too small to allow water droplets to pass through, but large enough to allow water vapour to escape, helping to regulate body temperature.