The Aphex Pro Trousers are our toughest and most waterproof shell trousers for extreme conditions, fully water and windproof with our best membrane, Hypershell® Pro, excellent ventilation and a durable shell fabric. All trims and details are chosen to withstand the roughest weather conditions; all zippers are YKK® Vislon/Aquaguard, and they are equipped with reinforcements at exposed parts. Equipped with Recco® for searchability in emergencies and side thigh ventilation. Our most versatile shell trousers, wear them for expeditions all year round or as technical alpine ski trousers during winter.