The ultimate sparring and athletic development product for Mixed Martial Arts. The Viking MMA/Kickboxing resistance striker is a resistance band training system you wear while your train. Resistance is placed on your hands and feet to turn normal movements into a workout. Improve your punches, jabs, hooks as well as speed, agility and footwork The Viking striker is most popular with MMA and boxing athletes but can be worn to amplify the intensity of any training.