Boston Red Sox 47 Socks - Arena - Navy. Sportlight, keep cool and dry, moisture wicking, mesh vented socks. Sock Technology 1. Moisture Wicking Yarns: Helps fight smelly socks 2. Mesh Vented Zones: Lets your feet breathe & stay cool 3. Selective Cushioning: Just enough cushion in the heel & toe for all day comfort. Small: Youth shoe size 13c-4y Womens shoe size 5-6.5, Medium: Men's shoe size 5-8.5 Women's shoe size 5-9.5, Large: Men's shoe size 9-13 Women's shoe size 10-12