Comfortable, moisture-wicking crew socks adorned with Delicate Arch and a reminder that Your Steps Matter / Stay on the Trail stitched on the foot. Stretches for the perfect fit. Made of: 75% micro denier acrylic, 15% nylon and 10 % spandex. Sizing: S/M Women 6-10; Men 5-9; L/XL Women 10-14, Men 9-13. Euro size: S/M 37-42, L/XL 43-48.