2NDS . · Designed for comfort in a wide range of shoe styles, SmartWool's Running mini socks offer ultra-lightweight comfort in a naturally breathable, moisture-wicking package. · Merino wool is naturally breathable, moisture-wicking and odor-free for comfort year-round. · Double ribbed cuff with elastic to hold sock up Strategically placed elasticity in ankle brace, arch brace and contour flex zone Waffle knit instep for stretch and ventilation Non-cushion sole allows extra sensitive feel for running Flat-knit toe seam for comfort Ultra-lightweight Quarter-crew height 66% merino wool, 30% nylon, 3% elastic, 1% polyester Machine wash / dry 2NDS , barely perceptibel blemishes. · USA, fabric USA and imported. · Size: XS (1-3??) S (4-6??) M (7-9??) L (10-12??) XL (13+) Available Colors: GLACIER / NATURAL, NATURAL / MELON, SILVER / AZALEA. · Sizes: L, M, S, XL. ·