Review on The Ultimate Venum Challenger Mouthguard: Unbeatable Protection for Every Fighter by Loren Jacobson

Good: They fit great. The customization process is easy to follow. Easily hand washable. With Thai workouts I started wearing both upper and lower. When wearing, pieces of the upper broke off in my mouth. Difficulty speaking while using it (typical mouthguard as far as I can tell.) Things that might redeem the product: I may have sucked them a little close to my teeth during the fitting process as there wasn't much left between my teeth and the Floor material material when I had it finished. I will try another Venum protection to see if I get better results with a different model.