This Resistance Trainer with shoulder harness provides lower-body conditioning similar to that of a sled, but with several advantages: First, real world application. Instead of demanding a burst of strength up front, the athlete or trainer provides resistance throughout the drill. This more closely simulates the dynamics of actions in competitive sports. Also, the Resistance Trainer provides accessibility. The handle, drag strap, and shoulder harness fit easily inside a gym bag. Includes one 10 foot drag strap and one shoulder harness.