Rival RPM11 Evolution Punch MittsNew Generation RB1 Ultra Bag Gloves. Its hard to improve on what has been nearly perfect since we introduced the RB1 in 2003. However, in our always growing "attention to detail, we think we have once again succeeded in making the best even better. Manufactured with a newly developed, upgraded outside raw material, this improved RB1 version continues to offer the same hyper resistant and long lasting bag glove. Add to that, an improved and more