Eliminate the need to stop and change layers as you close in on the summit, with this highly breathable and adaptable synthetic insulated jacket. It combines PrimaLoftA(R) Gold Active+ insulation, which breathes and insulates through peaks and troughs of activity, with low-bulk Thermic(TM) stretch fleece side panels that offer superb mobility and make the jacket easy to layer. The breathable yet wind-resistant PertexA(R) Quantum Air fabric deflects windchill while responding to your output, keeping you comfortable on tough ascents in mixed conditions. The result is lightweight, packable active insulation you can wear as a warm layer or technical outer, from the dawn start to the summit push. PrimaLoftA(R) Gold Active+ insulation balances warmth and breathability, ideal for changeable conditions. Lightweight YKKA(R) VISLONA(R) centre front zip with chin guard. Fine-tuned breathability with wind-resistant PertexA(R) Quantum Air fabric and low-bulk Thermic(TM) stretch fleece side panels. Lightweight single sided rear hem adjustment with anti-snag tether. Under-helmet hood helps seal in the warmth on windswept rockfaces. Unhindered reach and mobility with the pre-curved, articulated sleeves. Two zipped hand pockets, one of which doubles as an integrated storage pocket which you can stuff the jacket into and clip to your harness on the climb. FitSlim Weight300.5g/10.6oz(Size10) Centre back length(Size S): 64.5cm / 25.4in Insulation40gsm PrimaLoftA(R) Gold Active+ insulation (55% recycled content) throughout Main fabric20D PertexA(R) Quantum Air with fluorocarbon-free DWR (47gsm [2cfm]) Secondary fabricThermic(TM) stretch fleece (215gsm) side panels Fabric lining20D recycled nylon (40gsm [10cfm]) Product codeQIP-42