PROLAST is proud to bring you 100 lbs. Hybrid Heavy Punching Bag. These bags can be used for Boxing, MMA, and Muay Thai and are the best heavy bags in the market today. Proudly handcrafted and manufactured in USA, these bags are manufactured in a beautiful black color, using PROLAST'S indestructible “RIP-STOP” exterior material. We have succeeded in producing a bag of perfect density that is consistent from top to bottom. Perfectly balanced, and designed to withstand the most intense workouts, these heavy punching bags will continue to out-perform long after others have failed.