Stretchy and slim fitting, it's comfortable under other gear and fits easily under a harness with a longer length at the back to cover the hips. Low bulk, packable and perfect for alpinism, mountaineering and climbing year-round.Thermic S Fleece - quick wicking, fast drying, breathable, lightweightLightweight fabric with alternating stripes of high and low lofting fleece for warmth in low bulk package with increased air flowLightweight half length YKK centre front zip for venting1 YKK zipped mesh lined chest pocket with lightweight zip pullFlatlocked seams throughout for improved comfortElasticated binding at the cuffs and hem for fit and comfortDropped hem improves warmth on lower backFit: SlimWeight:223g/7.8oz (Size M)