Bridgedale - Unisex 2 Pack Base Layer Thermal Liner Boot Socks In need of some base layer socks for the cold weather? These Unisex style boot socks are designed to be worn for warmth and comfort. The thermal liner with Endurofil will help keep feet warm, dry and protected. Endurofil has the lowest thermal conductivity of any yarn and worn next to the skin helps retain heat generated by your feet. They will also transport moisture generated quickly away from the skin out to the main sock where it can evaporate keeping feet dry and comfortable. Extremely quick drying they ll be ready and waiting in the morning after a quick wash. These are the ideal choice for walkers, trekkers and travellers looking for comfort and warmth during the colder months. The Flat Toe Seam minimises bulk that could cause irritation and built on a structure of Lycra, allows our ThermoFit process to ensure the sock returns to its original shape and size after every wash. These socks are made from 79% Endurofil Polypropylene, 17% Nylon Polyamide, 4% LYCRA Elastane and come in Navy or Grey. They come in 4 sizes: Small (3-4.5 UK), Medium (6-8.5 UK), Large (9-11.5 UK), X-Large (12+ UK) and are Machine Washable. Extra Product Details Bridgedale Unisex Thermal Socks - Performance Fit - Base Layer Liner Design - Flat Toe Seams - Crew Length - Moisture Wicking - Perfect For Winter - Available in Navy or Grey - 4 Sizes Available