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Ordered an adult size which I thought would be okay, it turned out it was far too big so I replied to the email they sent and asked if I could have a refund and I purchased the youth size at the same time, I needed the gumshield urgently for a competition. I needn’t have ordered it separately because within 1 hour of sending my email - on a Sunday too- I had a response saying they will issue a refund for the adult size and they would send me a replacement but they saw I had already ordered a smaller one. Amazingly fast service. Got the youth size And refunded the next day! The youth size is better, still a little large in my mouth but works fine! I can certainly recommend. If you think you have a smaller mouth I’d suggest go straight for the youth size!!
I bought this mouthguard because of the previous reviews and I'm glad I did! My 11yr old son was very nervous of even having to use a mouthguard. I purchased another that was recommended by the school uniform supplier, but he found it very uncomfortable. With this mouthguard he has no problems and forget's he is even using it. Very good product.
Easy to mould but you have to press really firmly to get a good fit. I bought this for my daughter but have ended up using it myself. I would say that the junior gym shields are definitely big enough for adults.