Resistance training has become increasingly popular in recent years as athletes look to use their own body weight and natural conditions as a fitness tool instead of buying fitness equipment. This harness system uses partner-controlled resistance. Suitable for short sprints and explosive forward movements. Pulling the red cord releases partner. FEATURES Training pro quick-release belt The most cost-effective speed resistor. This harness system uses partner-controlled resistance. Suitable for short sprints and explosive forward movements Pulling the red cord releases partner Precision quality assured. SPECIFICATIONS Colour: Black/Red. Nylon harness & webbing with leash. Padded shoulder strap.