---
product_id: 87869325
title: "SISU Mouth Guard Aero - Royal Blue - Ultra Slim Gumshield for Adults & Kids - Custom Fit Rugby Gum Shield- A Remouldable Sports Mouthguard for Boxing, MMA, Hockey - (Medium 5' - 6' Tall)"
brand: "sisu"
price: "7768 kr"
currency: ISK
in_stock: true
reviews_count: 13
category: "Sisu"
url: https://www.desertcart.is/products/87869325-sisu-mouth-guard-aero-royal-blue-ultra-slim-gumshield-adults
store_origin: IS
region: Iceland
---

# 30% stronger with 8x tensile strength 1.6mm ultra slim profile Remouldable up to 20 times SISU Mouth Guard Aero - Royal Blue - Ultra Slim Gumshield for Adults & Kids - Custom Fit Rugby Gum Shield- A Remouldable Sports Mouthguard for Boxing, MMA, Hockey - (Medium 5' - 6' Tall)

**Brand:** sisu
**Price:** 7768 kr
**Availability:** ✅ In Stock

## Summary

> 🛡️ Ultra-slim, ultra-strong: Protect your game without missing a beat!

## Quick Answers

- **What is this?** SISU Mouth Guard Aero - Royal Blue - Ultra Slim Gumshield for Adults & Kids - Custom Fit Rugby Gum Shield- A Remouldable Sports Mouthguard for Boxing, MMA, Hockey - (Medium 5' - 6' Tall) by sisu
- **How much does it cost?** 7768 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/87869325-sisu-mouth-guard-aero-royal-blue-ultra-slim-gumshield-adults)

## Best For

- sisu enthusiasts

## Why This Product

- Trusted sisu brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Science-Backed Safety:** Medically tested, BPA-free, and crafted in the USA by doctors for smarter, safer sports performance.
- • **Custom Fit, Every Time:** Boil & bite moulding adapts perfectly to your teeth, remouldable up to 20 times for growing kids or braces.
- • **Featherlight Protection:** At just 1.6mm thin, enjoy unbeatable comfort without compromising strength.
- • **Trusted by Pros Worldwide:** Preferred by rugby, MMA, boxing, and hockey athletes for reliable, lightweight protection.
- • **Impact-Defying Diffusix Tech:** Smart polymer design with crumple zones and reinforced bite pad absorbs heavy hits effortlessly.

## Overview

The SISU Mouth Guard Aero is a revolutionary ultra-slim (1.6mm) and 30% stronger sports mouthguard featuring advanced Diffusix technology for superior impact absorption. Custom mouldable and remouldable up to 20 times, it offers a perfect fit for adults and kids, including those with braces. Trusted by professional athletes across rugby, MMA, boxing, and hockey, this BPA-free, medically tested guard delivers lightweight, breathable protection designed and made in the USA.

## Description

Shop SISU Mouth Guard Aero - Royal Blue - Ultra Slim Gumshield for Adults & Kids - Custom Fit Rugby Gum Shield- A Remouldable Sports Mouthguard for Boxing, MMA, Hockey - (Medium 5' - 6' Tall). Free delivery and returns on all eligible orders.

Review: Great product - Easy to mould. Perfect for my 4 year old for hockey. The other guards were just too large
Review: When you’re moulding you can dip a section back in the hot water and shape it bit by bit - Brilliant. Comfortable for kids whose teeth are still growing. Easy to talk and breathe in. Took a few goes to get it in the perfect shape but it can be warmed and shaped over and over til it’s right.

## Features

- ULTRA SLIM YET STRONG: At just 1.6mm thin, SISU Aero is 50% slimmer than conventional rugby mouth guard , yet 30% stronger with 8x tensile strength. A light gumshield kids and adults can wear to talk, breathe and hydrate freely without removal
- DIFFUSIX TECHNOLOGY: High tech smart polymer gum sheild with crumple zones, perforations and a reinforced bite pad dispersing impact forces. Lightweight yet absorbs heavy hits, creating a mouth guard kids and adults trust for contact sport protection
- CUSTOM FIT MOUTHGUARD: Boil & bite technology creates a precise custom mould in minutes. Remouldable up to 20 times, a perfect mouthguard for braces - adapting as teeth shift, making it a reliable gum shield for braces or junior mouth guard
- BUILT FOR CONTACT: Trusted by athletes worldwide, SISU delivers protection across a range of sports. In the UK it is a popular mouth guard rugby professionals depend on, a secure MMA & boxing mouth guard, and a lightweight mouthguard hockey option.
- BORN FROM SCIENCE, BUILT ON TRUST – Founded by doctors, SISU innovates to create the strongest, thinnest and most comfortable guards. Made in USA, medically tested and BPA-free, delivering safer, smarter protection worldwide.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01LZZY089 |
| ASIN  | B01LZZY089 |
| Age Range Description | Youth, Adult |
| Best Sellers Rank | 1,195 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 16 in Sports Mouthguards 54 in Lacrosse (Sports & Outdoors) |
| Brand | SISU |
| Country of origin | USA |
| Country of origin  | USA |
| Customer Reviews | 4.5 4.5 out of 5 stars (9,860) |
| Customer reviews | 4.5 4.5 out of 5 stars (9,860) |
| Date First Available | 15 Sept. 2016 |
| Department  | Unisex |
| Is discontinued by manufacturer  | No |
| Item model number  | S16-NG-RB-1 |
| Manufacturer  | SISU |
| Product Dimensions  | 12 x 2 x 16 cm; 22 g |
| Product Name | Mouth Guard |
| Units | 1.0 count |

## Product Details

- **Age range (description):** Youth, Adult
- **Brand:** SISU
- **Colour:** Royal Blue
- **Item dimensions L x W x H:** 12 x 2 x 16 centimetres
- **Manufacturer:** SISU
- **Material:** Plastic
- **Material Type Free:** PVC Free
- **Model name:** Aero 1.6
- **Recommended uses for product:** Sports (All), Dental Procedures
- **Sport:** Lacrosse, Hockey, Ice Football, Basketball, Roller Derby

## Images

![SISU Mouth Guard Aero - Royal Blue - Ultra Slim Gumshield for Adults & Kids - Custom Fit Rugby Gum Shield- A Remouldable Sports Mouthguard for Boxing, MMA, Hockey - (Medium 5' - 6' Tall) - Image 1](https://m.media-amazon.com/images/I/61pfl+kPlAL.jpg)

## Questions & Answers

**Q: Is the senior mouthguard the large size?**
A: yes

**Q: The advertisement states "one size" but sisu offer 3 different...anyone know what one they mean?**
A: The SISU Aero small is recommended for those under five feet, the Aero medium is recommended for those between five and six feet, the Aero large is recommended for those six feet and above.

**Q: Hi, am looking for a mouthguard for my 11 year old son who plays rugby, that is also bpa and bsp free. Would one of these suit?**
A: Hello again, I have now received a response from the manufacturers of Sisu mouthguards - please see below...
"The material is a surgical grade thermoplastic that contains no harmful chemicals: No bpa, bps, phthalates, pvc, or latex. 
Our mouthguard material has been tested by an independent, third party organization, NAMSA for 'irritation and skin sensitization'.  It passed based on the requirements of the International Organization for Standardization 10993-10 (biological evaluation of medical devices).
The material has not shown to cause irritation or skin sensitization.
However, if you have a unique or extraordinary allergy or a sensitivity to any chemical, extreme caution is recommended."
I hope this answers your query.
Also, if ordering for an 11 year old, you will need to order the adult size Aero or Max not the junior.
Kindest regards
Wendy at Trust Parts

**Q: Hi looking for a mouth guard for 13 year old girl hockey which size and style would be best thanks**
A: Is she wearing a full-face cage? If no, the SISU Max guard is the best choice. If yes, she can wear either the SISU Aero Medium or the the SISU Max guard.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product
*by A***R on 28 September 2025*

Easy to mould. Perfect for my 4 year old for hockey. The other guards were just too large

### ⭐⭐⭐⭐⭐ When you’re moulding you can dip a section back in the hot water and shape it bit by bit
*by A***R on 4 August 2025*

Brilliant. Comfortable for kids whose teeth are still growing. Easy to talk and breathe in. Took a few goes to get it in the perfect shape but it can be warmed and shaped over and over til it’s right.

### ⭐⭐⭐⭐ Different but good
*by A***N on 24 June 2025*

Can be difficult to fit. It feels strange at first due to the hard texture but it works well and is less intrusive because of the compact design.

## Frequently Bought Together

- SISU Mouth Guards Areo 1.6mm Custon Fit Sports Mouthguard for Youth/Adults, Original
- SISU Mouth Guards Sports Mouthguard Storage Case

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.is/products/87869325-sisu-mouth-guard-aero-royal-blue-ultra-slim-gumshield-adults](https://www.desertcart.is/products/87869325-sisu-mouth-guard-aero-royal-blue-ultra-slim-gumshield-adults)

---

*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-22*