Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Not good for breathing
Review: So I test drove the mouthguard while sparring, and I have to admit I wasn't impressed. Despite being designed to allow mouth breathing, the passages are barely enough to provide enough air to someone sitting on a couch, let alone exercising. I would not recommend this mouthguard for athletes/fighters.
