The Arcteryx Nuclei Vest is a superlight insulated Vest for days out in cooler conditions when additional core warmth is required without compromising freedom of movement. Made from Arato 10r, a 10 denier windproof ripstop nylon fabric outer with Coreloft Compact insulation. The insulation is a single thin sheet which eliminates the needs for baffles and additional stitching, keeping the weight down and the windproofing up. There is one external chest pocket for small essentials and one internal dump pocket that's hand for storing gloves. The hem is adjustable so you can totally seal out cold draughts when sat on a belay. Arcteryx Nuclei Vest Features Arato 10r Ripstop Nylon Coreloft Compackt, 60g per meter square insulation 1 Zipped chest pocket 1 internal dump pockets Adjustable hem Fit:Regular Center Back Length: 72cm (medium) Weight:175g Arcteryx Nuclei Vest