Bridgedale Midweight Merino Comfort Boot Socks - Men\'s Boot length sock for all day protection and next-to-skin comfort. Designed to ensure a dry environment for comfortable and healthy feet. Merino Comfort Fusion Technology creates a soft, fast-drying, durable sock with a close supportive fit around your foot. The super stretch ribbed cuff provides a looser unrestrictive fit around your calf allowing it to be worn up or down. The engineered zonal padding system provides extra support and comfort throughout the foot bed for long comfortable days in the hills. The Flat Toe Seam minimises bulk that could cause irritation in the toe box and the sock is kept securely in place with an Elasticated Arch and 3D-shaped heel cup. Built on a structure of Lycra® and set by our Thermo Fit process ensures the sock returns to its original shape and size after every wash. A boot-length sock for day hikers and trekkers who walk all year-round, the Hike Midweight Comfort features all-day protection with next-to-skin comfort. Features: Sock Height: Boot / Crew Comfort Fit Moisture Management ThermoFit Flat toe seam Overfoot Ventilation ShockZones Y-Heel Fibre Content:  27% Merino Wool 50% Coolmax® / polyester 22% Nylon / polyamide 1% LYCRA® / elastane CoolMax® - CoolMax fabrics are engineered to wick excess moisture away from your skin to keep you feeling dry and comfortable. Size Guide: Please see this guide to get the correct sizing for your socks. UNISEX / MEN\'S Sock Size UK Europe USA Cm / Inches Small 3-5.5 36-39 4-6.5 22.0-24.5 / 8.66-9.64 Medium 6-8.5 40-43 7-9.5 24.5-27.0 / 9.64-10.63 Large 9-11.5 44-47 10-12.5 27.0-29.0 / 10.63-11.42 X-Large 12+ 48+ 13+ 29.0+ / 11.42+