FOX Racing Proframe RS Heatstack Helmet Arctic Blue Size M (55-59cm)
FOX Racing Proframe RS Heatstack Helmet Arctic Blue Size M (55-59cm)
In stock. Delivery in 24 hours
Shipping costs (UNITED KINGDOM): 23.90
Expected arrived: 29/09/2026
Full-face Helmet Proframe RS Heatstack: Lightweight, Downhill Certified, Mips® Integra Split
Lightweight full-face helmet, certified for DownhillThe Proframe RS Heatstack helmet takes the breathability and lightness features of the Proframe and elevates them to a higher level in terms of safety and performance. The helmet is equipped with the brand-new Mips® Integra Split protection system. This system combines a dual-density foam - for high and low speed impacts - and a low-friction layer placed between the two to reduce rotational forces, which in the event of an impact would be transmitted to the brain. The BOA® Fit System gives this professional-level downhill-certified helmet a secure and precise fit.
BOA® Mips® System Integra Split Adjustable Visor Integrated GoPro® Mount under the visor Cheek pads in multiple sizes to optimize fit
BOA® Fit System for best-in-class fit and security The Mips® Integra Split 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 Includes removable GoPro mount under the visor Increased ventilation and reduced contact surface improve cooling of the head Ionic+ ® antimicrobial liner and cheek pads to optimize fit FIDLOCK® magnetic closure Meets ASTM-F1952 MTB Downhill certification standard
Sizes
Sizes: small, medium and large (see size guide for measurements)
How to adjust helmet fit
BOA® dial: micro adjustments - counterclockwise to loosen, clockwise to tighten - allows for a precise fit. Adjust while wearing the helmet.
Rear cradle: four adjustment points move the cradle up or down, to ensure the best possible fit.
Cheek pads: two sets of cheek pads are included with the helmet, a set of thin pads pre-installed and an optional set of thick pads for a snugger fit.
Care
For cleaning and care instructions, see our Helmet Care Guide
Note: avoid exposure to aerosol sprays such as insect repellents and sunscreens as they can cause the helmet finish to peel
Materials: 27% ABS, 26% EPS, 20% polycarbonate, 16% polyurethane, 11% Pa
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