Got a canvas bag with black pleather sewn on to it. After 2 times using it, black pleather got ripped off. I hope canvas lasts for at least a year or so. Thankfully the chains are sturdy.
It won't be so bad if they didn't put the pleather on it, just canvas or some other strong textile.
FYI: I'm an average size female with only 3 years martial arts. I don't think this product could withstand a professional fighter.