Fox Clothing Proframe RS MHDRN Mips Full Face MTB Mountain Bike Helmet

The Fox Proframe RS full face helmet takes the lightweight breathability of the Proframe and takes it to the next level of safety and performance. Featuring the all-new MIPS™ Integra protection system, which combines an EPP liner with an EPS layer and is designed to reduce rotational forces in a crash otherwise transmitted to the brain.
Key Features:
- BOA® fit system for class leading fit and security
- MIPS™ Integra impact protection system combines an EPP liner with the EPS layer and is designed to reduce rotational forces in a crash
- 3 position adjustable visor compatible with goggles
- Removable under visor GoPro mount included
- Increased ventilation and decreased surface contact area improves cooling
- Ionic+ anti-microbial liner and cheek pads to optimize fit
- Fidlock® magnetic closure
- EPS, PC, PA, Epp, Polyester
Designed to meet the needs of all-mountain riders and enduro racers, the increased ventilation and decreased surface contact of the helmet keep you cool on long rides, while the Ionic and anti-microbial liner and cheeks pads provide optimized comfort and fit. Fit is also assured care of the BOA® fit system, offering class-leading fit and security, and the Fidlock® magnetic closure system for easy-open and close use, even with gloves. The 3-position adjustable visor is compatible with goggles, and those looking to capture every sweet run will appreciate the removable, under-visor GoPro mount on the Fox Proframe RS mountain bike helm.
Occasionally, without notice, manufacturers change product design and/or specifications.
Fox Proframe Helmet Size Guide
Use the below chart and guide to find the correct size Fox helmet for you.
|
Size |
Head Size |
Cheek Pads |
Hat Size |
Weight |
|
S |
51-55 cm |
20/30 & 30/40mm |
16.2-17.5 cm |
620±30 g |
|
M |
55-59 cm |
20/30 & 30/40mm |
17.5-18.8 cm |
630±30 g |
|
L |
59-63 cm |
20/30 & 30/40mm |
18.8-20.1 cm |
700±30 g |
How to measure
To find the circumference of your head, place a tape measure in the centre of your forehead, wrap it around above your ears and around the back of your head. If there's a slight difference between two different sizes, always go for the tighter size.

Once you know the circumference of your head, see the available sizes shown on the product and select the appropriate one.
The majority of cycling helmets have some form of adjustment for size, usually in the form of a ratchet adjuster to tighten or loosen the straps, some helmets will also come with different thickness pads to further customise the fit.
Read our clothing size guide for more information on sizing.
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