Lightweight, breathable merino wool socks designed for all-day riding comfort When you know you're heading out for a full pull, you want your feet to stay comfy all day. The 8" Flexair Merino Socks are lightweight and breathable socks that are 100% up to the task. The compression arch bumps up the comfort stakes, as does the flat-stitch toe construction which stops chaffing and irritation while you ride. With their rib-knit upper, these socks won't fall down, even if you do. Features Mesh zones provide added breathability. Compression arch support for superior fit and comfort. Rib-knit upper won’t slide down when the trail gets rough. Flat-stitch toe construction offers improved comfort. 57% merino wool, 30% polyamide nylon, 9% polyester, 4% elastane.