As with all Rhino equipment & training gear, the Rhino line of wave shields are specifically designed for the sport of rugby. Heavier, better made, stronger stitching, more durable materials and longer lasting.... Plus "Made in the USA". Like the hit shields, the Rhino Wave shields are larger and thicker than the others. The Wave shields are also more ergonomically shaped to form to the holder's body. All Rhino pads are designed and manufactured not just for the safety of the attacking player, but for the safety of the person holding the bag in the training session.