The upper body sled strap is one of the best pieces you can get to turn your sled into a total body workout. With the upper body sled strap you can turn a cardio workout into a total body killer cardio session. Here is a small list of upper body exercises that can be performed using the upper body strap: Upright rows, rear delt raises, front raises, one arm rows, two arm rows, chest flies, iron cross, chest press, triceps extensions and biceps curls. The list goes on and on as far as your imagination can take it. Turn your cardio into a fat blasting total body workout with the Spud, Inc. upper body strap.