Ride Concepts Fifty/Fifty Sock The Fifty/Fifty socks by Ride Concepts are the perfect accessory for any trail. The Fifty/Fifty socks boast a full Merino construction, made from non-mulesing wool for all the benefits of Merino wool without the ethical downside. Mesh articulation zones provide comfortable freedom of movement and increase breathability. A rib knit cuff keeps the socks from slipping down, while an arch band provides comfortable arch support. Features Mulesing-free Merino wool construction for all the performance benefits of wool, without the ethical downside Mesh panels in specific zones to improve breathability and freedom of movement Arch band for better support and improved fit Seamless heel and toe design for improved rider comfort Size Chart Size Small Medium Large Extra Large US Men's Shoe Size-6 - 8. 59 - 1313 - 15US Women's Shoe Size5 - 7. 58 - 10. 5-EU Shoe Size35 - 3839 - 41. 542 - 4747 - 49. 5 | Ride Concepts | Fifty/fifty Sock Men's | Size Small In Oxblood