Amazon.com This complete training kit -- for a full-body, mixed martial arts-style workout -- includes a 70-pound MMA polycanvas heavy bag, gloves, and protective wrap. The bag is made of super tough, rugged material stuffed with a proprietary blend of filler material for optimal shock absorbency. An adjustable heavy bag chain lets you set the bag at an ideal height. About Everlast The preeminent brand in boxing since 1910, Everlast is a leader in the design, manufacturing, licensing, and marketing of authentic boxing, mixed martial arts, and fitness-related sporting goods equipment, apparel, footwear, and accessories. From heavyweight champion Jack Dempsey and middleweight legend Sugar Ray Robinson to middleweight champion Jermain Taylor and UFC heavyweight champion Randy Couture, Everlast is the brand of choice for generations of professional fighters.