Super comfortable performance Trino Pacer Sprinter low socks by Allbirds, unisex size Medium: Women’s US 8-10, Men’s US 7-8. Color is Navy Night. This listing is for 3 pairs, all brand new. DESCRIPTION Our cushioned performance sock engineered with sustainable materials, breathable mesh knit, and durable reinforcements where it matters most. Made in the USA. Trino® Sprinters - Cushioned are made of 46% recycled nylon, 35% TENCEL™ Lyocell, 15% Merino Wool, and 4% Spandex.