About Allbirds Trino Sprinters Low Socks - Below the Ankle (For Men and Women) Stay comfortable throughout your workout with Allbirds' Trino Sprinters low socks, made from a wicking, breathable fabric blend with a supportive arch band and chafe-free flat toe seams. Soft knit blend of recycled nylon, TENCEL®, wool and stretchy spandex Moisture wicking, fast drying and breathable Ribbed cuff with heel tab for enhanced fit and comfort Elastic arch band Flat-knit toe seams helps prevent chafing and irritation Lightweight Height: Below the ankle Made in United States of America