Men's Ultraskin long undersuit pants made with Ultraskin technology. The Ultraskin technology combines 3 different layers: fleece on the inside for the best comfort, breathable windproof membrane and elastic layer on the outside for perfect fit and freedom of movement. These trousers guarantee comfort and freedom of movement. Perfect for use under wetsuits and drysuits for added thermal protection. Also suitable for water sports as it offers protection against light friction. Also offers UPF 50 sun protection.