Crafted for punishing ascents in intermittent weather, this adaptable, hardworking midlayer expertly manages your output, even when you&';re adding and removing outer layers. Delivering the moisture control and temperature regulation you need when you&';re working your hardest, this is breathable, wicking active insulation which works at the core of your layering system to keep you comfortable and sweat-free. Armed with an unbeatable fabric combination that breathes, traps warmth, and disperses moisture quickly, it&';s an essential layer for your next bid for the summit. Traps warm air in the cosy, fast-drying PrimaLoftA(R) Evolve lining. A drop liner and a specially selected combination of fabrics optimise warmth and wicking performance. Sweat moves from the inside out thanks to the soft, high-wicking Motiv(TM) Aero fabric. YKKA(R) VISLONA(R) centre front zip. We&';ve cut down on loose fabric by seaming the layers together in strategic areas. Flatlock seam construction for comfort and easy layering. Elasticated hood provides a comfortable close fit under a helmet. Elasticated binding at the cuffs and hem for fit and comfort. Open the two mesh hand pockets to provide extra ventilation, without the need for pit zips.