Review on 🥊 Impact Custom Professional MMA/Boxing/Muay Thai Mouthguard: Superior Protection for Combat Athletes by Mike Lunde

5/16/19 Worst USPS shipping method. It's been taking so long, almost a month, combined coming, going and coming back. USPS gave me trouble too, just delivered a package saying they have no one to contact. Aside from the delivery, the product is excellent. Fits like a glove as described. Now the only thing keeping it from being five stars is the bottom of the Kappa. My bottom teeth have no support to hold onto when biting. Every time I bite, my jaw slips, which is definitely not a good thing. Maybe it was made in a hurry or didn't see it when it was finished, I don't know. Unfortunately, I wouldn't say I would recommend this to anyone involved in boxing or MMA. Update 5/18/19: I decided to take a chance and boil it for 30 seconds and bite as usual. After that, the guard fitted as well as I wanted and keeps my bottom teeth in place perfectly. I'm going to suggest that Impact put some hard pieces on the floor, or at least tell their customers to do what I did for a more precise fit. Thanks to Impact for a great mouthguard I will definitely be ordering another one or more!