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Fox Racing Dropframe Pro Kairos Mountain Bike Helmet

Redefining open-face mountain bike helmets, the Dropframe Pro Helmet has earned Virginia Tech’s best rating in their Bicycle Helmet Ratings program with the best rating of any helmet they have ever tested. Superlight and extremely comfortable, it's the choice for trail riders seeking more coverage, more confidence, and more fun. This game-changing open-faced enduro helmet features Mips® safety system, Fox Racing dual-density Varizorb EPS liner and increased coverage for the ears, jaw, and back of the head. This MTB helmet provides the most complete coverage in an open-face helmet.

Features:

  • Mips® safety system
  • Dual-density Varizorb EPS provides improved protection by spreading forces of impact across a wider area
  • 8 Big Bore vents and 7 exhaust vents keep you cool and aid in moisture management
  • Securely fixed visor is positioned to channel airflow into the Big Bore vents
  • Fidlock SNAP helmet buckle provides quick and secure entry and exit while wearing gloves
  • Removable antimicrobial and moisture wicking liner
  • Includes additional pads for custom dialed fit
  • Bicycle use only, not DOT-approved and not intended for use with motorcycles

Note: Bicycle use only, not DOT-approved and not intended for use with motorcycles. Avoid using aerosol sprays like bug spray and sun screen as the Helmet's finish could peel. 

Product Style RevZilla Item # Store Sku MFR. Product # Availability
Product Style LG / Black/Orange RevZilla Item #10548556 Store Sku MFR. Product #37607-001-L AvailabilityOut of Stock
Product Style MD / Black/Orange RevZilla Item #10548557 Store Sku MFR. Product #37607-001-M AvailabilityAvailable: Ships in 5-7 business days
Product Style SM / Black/Orange RevZilla Item #10548558 Store Sku MFR. Product #37607-001-S AvailabilityAvailable: Ships in 5-7 business days
Product Style LG / Black/Green RevZilla Item #10548559 Store Sku MFR. Product #37607-295-L AvailabilityOut of Stock
Product Style MD / Black/Green RevZilla Item #10548560 Store Sku MFR. Product #37607-295-M AvailabilityAvailable: Ships in 5-7 business days
Product Style SM / Black/Green RevZilla Item #10548561 Store Sku MFR. Product #37607-295-S AvailabilityAvailable: Ships in 5-7 business days

Fox Racing Helmet Sizing

Size Head (cm)
XS 53-54
SM 55-56
MD 57-58
LG 59-60
XL 61-62
2XL 63-64

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.


How to Measure

  • H Head
    Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.
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