Burton Boot Parts J-Bar M Size 4 Pack J-Bars have a significant effect in preventing heel lift inside the boot when the boot is fully tightened (laced up). They are best suited for Imprint 3, Life, and Life Plus liner models, which have Velcro panels for attaching J-bars on the inner surface of the shell inner cuff. I am selling these because the size didn't fit me. They are genuine Burton products, but I was also able to attach them to Deeluxe boot liners. 【Size Guide】 S = Women's Boots US4-8 (21cm-25cm) M = Men's Boots US6-10 (24cm-28cm) / Women's Boots US8.5～ (25.5cm～) L = Men's Boots US10.5 inches (28.5cm~) - Color: Yellow - Quantity: 4 pieces - Size: M Thank you for viewing.