ALO Unisex Half Crew Throwback Sock / Size M / NWT & Still In Bag ALO MSRP $34. Size M Instant classic. The Unisex Half-Crew Throwback Sock has all the features of a fave: a super-soft feel, comfy cushioning and classic stripe detail. Wear it tall or scrunched with leggings or shorts and your go-to sneakers. Hits slightly above the ankle S fits Women's shoe sizes 5 – 7; M fits sizes 7.5 – 10.5; L fits sizes 11-14 S fits Men's shoe sizes 3.5-5.5; M fits sizes 6-9; L fits sizes 9.5-13 Combed cotton, nylon, lycra