150 gsm- The Vapor Skier's Legging's unique shin-cut length is designed with ski, fishing, and hunting boots in mind. Why do that? Well, imagine this: no more need to cram that extra fabric in or over your boot cuff, while maintaining all the benefits of Duckworth's proprietary Vapor Wool fabric. And what are those again? In no particular order, we're talking moisture-wicking, quick-drying, antimicrobial (odor-free), and itch-free baselayer goodness. Our 100% American-made Vapor Skier's Legging is semi-loose-fitted and boasts a brushed waistband for extra comfort. Don't head out for your next cold weather adventure without them.