The Smartwool Women's Run Zero Cushion Low Ankle Socks offer plentiful comforts to make all your miles on the trail an enjoyable experience. These crew socks are made of merino wool blend fabric with durable Indestructawool technology that will last season to season. They feature the 4 Degree Elite Fit System which provides a performance-orientated fit with flex zones at the ankle joint, plus a narrow and slimmer fit perfect for women. Include the Smartwool Women's Run Zero Cushion Low Ankle Socks in your gear for all your running adventures.