Custom Lacrosse Mouthguards

Lacrosse combines a hard ball, swinging sticks and body contact, so a mouthguard is essential gear on the field. Every AlienGuard is made from an impression of your own teeth and formed on a model of your bite, so there's no size chart and no boil-and-bite guesswork.

Our pick for lacrosse: NanoBite

NanoBite ($94.99) is the AlienGuard we recommend for lacrosse. It's our ultra-slim, 4 mm, low-profile guard and, of all our models, the best for breathing and talking, useful when you're running the field and calling slides. Our 5 mm guards, Origin and Origin Pro, are made for combat sports like boxing, MMA, Muay Thai and kickboxing.

The model comparison lays out protection, profile, best sports and price, and our lacrosse mouthguard guide covers fit, the 2026 mouthguard color rule and team orders. For the full NFHS and NCAA equipment rules, see lacrosse mouthguard rules. Also play hockey? See the hockey and lacrosse mouthguard guide.

Why a custom guard

Mouthguards help protect against chipped, cracked or knocked-out teeth in sports with a high risk of contact. A custom guard is made from your impression, so it's more comfortable and secure than a stock guard, it doesn't slip or fall out, and it's easier to wear through practice and games.

Your colors

NanoBite comes in clear, white or black with custom text, such as your number. See mouthguard colors to match team uniforms. Choose Impression Storage so you can reorder without a new impression.

Buying for a whole roster? Team orders get 20% off mouthguards and merch (all models, including NanoBite and PowerBite), with a minimum order of 5 mouthguards and your team logo plus athlete names or numbers on every guard.

How ordering works

Build your guard online and we ship you an at-home impression kit. Taking the impression takes about 10 minutes, and the putty sets in 2 minutes 30 seconds; the impression guide walks you through it. Mail the impression back to our lab, and your guard is crafted within 10–14 business days after we receive a good impression, then shipped with tracking. Not sure your impression worked? Email a photo to support@alienguards.com and we will tell you if it can be used.

Care and replacement

Rinse your guard before and after use, brush it with a soft toothbrush, and store it in a ventilated case away from heat. We recommend replacing it every year. There is no age limit, but younger players' teeth are still changing, so plan to replace their guard more often. Athletes with braces can get AlienGuards, but their dentist needs to take the impression instead of using our at-home kit, so the braces don't get damaged. Your dentist can take an impression or 3D scan, then ship it to us or email it to impressions@alienguards.com.