Lighten Up. Quick-Drying Comfort is Here Between the all-natural powers of wool and a snug, compression fit, the men's Burton Performance Lightweight Sock are all in for longer days, fewer breaks, and more comfy feet. Think of them as energy drinks for your feet, without the crash and burn. Features: All-Natural Merino Power A lightweight merino blend sets you up for dry, comfy, stink-free feet. Made to Move From allover elastic support to smooth seams, and a low profile cuff, they're all in for getting after it. Tech Specs: Features + Tech All Over Elastic Support Chafe-Free Link Toe Seam Lightweight Low Profile Welted Cuff Quick-Drying and Odor-Resistant Polypropylene Reinforced Footbed Sock Lock Reinforcements Imported Yes Fabric 53% polyamide, 15% merino wool, 15% acrylic, 14% polypropylene, 3% elastane [Ombre] 45% Polyamide, 39% Merino Wool, 12% Polypropylene, 4% Elastane [Rock Lichen Stripes] 47% Merino Wool, 38% Polyamide, 12% Polypropylene, 3% Elastane [Skeleton Key] Warranty Lifetime Warranty Sustainability Responsibly Sourced Wool (RSW) Burton Men's Performance Ultralight Sock - Skeleton Key