Features of the Burton Women's Performance+ Ultralight Compression Sock Perfect for everything from slushy days to summer hikes Performance + ultralight comp sock delivers all the breathability and support they'll need A combination of focused support and padding provides comfort in all the right places Meanwhile, lightweight fabric Features drop needle construction to open up the fibers, allowing for optimal breathability Like a breath of fresh air for your feet Perfect for everything from slushy days to summer hikes All-star materials led by merino wool's legendary natural Insulation Quick-drying and odor-resistant Polypropylene reinforced Footbed All over elastic support Compression engineering designed to help muscles recover faster Chafe-free link toe seam Sock lock reinforcements Dryride ultrawick venting toe panels Ergonomic, articulated left and right motionFit Fabric Details 40% Nylon, 28% Merino Wool, 12% Polyamide Nanoglide, 11% Acrylic, 7% Polypropylene, 2% Elastane