RDX Gum Shield

Name: RDX Gum Shield
Brand: GymBum UK
SKU: B0BS9V2DVV
Price: 20.99 GBP
Availability: InStock

Engineered with purpose. Worn with confidence

£20.99 GBP

~~£0.00 GBP~~ £20.99 GBP

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Designed for performance

Size

Adult Above 12 Years Junior Below 12 Years

Color

Size chart

Quantity

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GymBum UK Size Guide

🧡 GymBum UK Sports Bra Size Guide

Size	Chest (inches)	Underbust (inches)
XS	33 ⅛	27 ½
S	34 ⅝	29 ⅛
M	36 ¼	30 ¾
L	39 ⅜	33 ½
XL	42 ½	36 ¼
2XL	45 ⅝	39
3XL	48 ⅞	41 ¾

🧍♀️ Women’s Activewear

UK	US	EU	Asian	Tops / Bras	Leggings / Shorts	Trainers (UK/EU/US)
4–6	0–2	32–34	S	XS	XS	3.5 / 36 / 5
8–10	4–6	36–38	M	S	S	4–5.5 / 37–38 / 6–7.5
12–14	8–10	40–42	L	M	M	6–7.5 / 39–40 / 8–9.5
16	12	44	XL	L	L	8–8.5 / 41–42 / 10–11
18	14	46	XXL	XL	XL	9–9.5 / 43–44 / 11.5–12

🧍♂️ Men’s Activewear

UK	US	EU	Asian	Tops / Hoodies	Shorts / Joggers	Trainers (UK/EU/US)
S	S	46	M	36–38" Chest	30" Waist	6–7 / 39–40 / 7–8
M	M	48–50	L	38–40" Chest	32–34" Waist	8–9 / 41–42 / 9–10
L	L	52	XL	42–44" Chest	36" Waist	10 / 43–44 / 11
XL	XL	54	XXL	46–48" Chest	38" Waist	11 / 45–46 / 12
XXL	XXL	56	3XL	50–52" Chest	40–42" Waist	12–13 / 47–48 / 13–14

🧵 Fit Notes

Asian sizes typically run 1–2 sizes smaller than UK sizing.
For a performance fit, choose your regular UK size.
For a relaxed fit, size up.
Measurements are approximate and may vary slightly by fabric and style.

Fit Tip: Some of our activewear follows Asian sizing (approx. 1–2 sizes smaller than UK). Refer to the GymBum Size Guide for accurate conversions.

ULTIMATE MOUTH PROTECTION FOR CHAMPIONS – Dominate your sport with confidence! The RDX Gum Shield features impact-absorbent gel that cushions your jaw and shields every tooth from devastating blows. Whether you're throwing combinations in the boxing ring, grappling on the BJJ mat, or battling it out in MMA, Muay Thai, Kickboxing, Taekwondo, Karate, ice hockey, or lacrosse, this guard has your back (and your teeth!).

The dual-layered design combines remolding thermoplastics with flexible Poly-gel that handles boiling water like a champ, while staying completely BPA-free and PAH certified for safety. BREATHE, SPEAK, AND DOMINATE – At 19MM height, this isn't your bulky, suffocating mouthguard. The natural breathable design lets you roar commands, catch your breath between rounds, and even hydrate without removing it.

The game-changing three-pronged Bite-Tab keeps front vents wide open during the boil-and-bite process, ensuring a custom fit that never compromises airflow or performance. CUSTOM FIT PERFECTION – Thick poly gel and innovative Molar Tech technology mould precisely to your teeth and jaw, covering every surface for maximum impact resistance. No more struggling with ill-fitting guards that slip and slide. TRAVEL-READY PROTECTION – Includes a sleek, durable protective case that keeps your mouthpiece pristine and gym-bag ready, whether you're a rising junior or seasoned trainer.