If the wilderness is calling, then the Tanami is the perfect lightweight trekking/hiking sock. Designed specifically for extreme outdoor conditions, this multi-thickness Australian Merino Wool sock will keep you comfortable and warm in any condition. FEATURES: 40% Australian Merino, 40% Acrylic, 15% Polyester, 5% Elastane Lightweight performance Impact zoned cushioning Compression zones for the perfect fit X-tech cross-foot compression Non Slip Comfort band Seamless toe Certified Carbon Neutral Product