Fox Racing Comp 5/F3 Buckle/Strap Kit (BLACK) The Fox brand is the most recognized and best selling brand of motocross apparel in the world today. Fox built its business by developing clothing, gear, and accessories for the high intensity, physically demanding motorsport of motocross.Replacement buckle strap kit for the Fox F3 and Comp 5 boots (also fits Youth Comp 5 boots down to size Youth 3).Sold