The Rab Men's Conduit Pull-On is a lightweight, versatile baselayer built for a wide range of mountainous pursuits. From winter skiing to summer mountaineering, this stretchy, gridded fleece excels at moisture management by wicking as fast as you sweat. It's also extremely breathable for a comfier feel when you're backcountry touring or winter climbing. A half-zip enhances ventilation when needed. Rab designed it with a slim fit for easy layering.