Fox Racing Comp 5 Undertow Boots An excellent boot at a great value, the Fox Comp 5 Undertow boot doesn't sell itself short with features like a race-bonded outsole and soft touch aluminum buckles. Add in the impressive line of prints and it's easy to see why this is the best value in MX boot technology Features Race bonded outsole for a new level of comfort and durability to value-priced off road boots Full leather upper construction for easy break in and long life Ultra easy aluminum soft-touch pivot lock buckles lock down securely and operate smoothly Anatomically contoured construction in shin plate and outer medial plastic guarantees free easy movement