While some reviews suggested this leaks, we're having no problems with it. I did underinflate it somewhat, making sure I could put my hand on top of the head and push until I compressed it down to the lower bars on the facemask. If you blow it up too much, its going to be easier to pop.My 7 year old that has a blue belt in mixed martial arts has performed every maneuver possible on it, including picking it up upside down over his head, slamming it to the ground and then leaping on it. While I cautioned him to be gentle with it, its taken a beating and hasnt leaked yet, about ten days so far. I'll update if it breaks.I also noticed it includes a pre-glued patch that wants 24 hours to cure. In my experience, these stink. Clean the area and use a standard inflatable raft type repair kit on it, it'll last.
Rating: [5 of 5 Stars!]