Ladies Wool Blend Durable Boot Socks If you are looking for a hard wearing durable sock that has great thermal insulation abilities then these ladies Storm Bloc wool boot socks are the perfect match for your feet. These socks are designed to be ultra-durable with Blueguard anti abrasion technology knitted into areas of the sock that would usually be prone to wear and tear. These include a reinforced heel and toe and front panel. Blueguard technology allows the sock to be 30x more durable than your average branded hiking sock. Other design features include a reinforced toe seam and arch support to guard against fatigued feet. The wool version in Storm Bloc\'s boot socks provides great thermal insulation in your feet holding the warm air close to your feet for longer. These socks are sold in a 2 pair pack and are a size 4-8 UK 37-42 eur 5-9 US. They are made from 40% polyamide 20% wool 17% polyester 10% cotton 8% polypropylene 3% acrylic 1% viscose and 1% elastane. There are 4 colour variations to choose between and they are machine washable