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OakleyDRT5 Helmet


Item # OAK01ST

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Item # OAK01ST

DRT5 Helmet

After taking a bit of a hiatus from the mountain bike world, Oakley is back with a new helmet that's designed, engineered, and tested by expert riders, including a close collaboration with 3x World Champion Greg Minnaar. Made for trail riding and enduro racing, the DRT5 Helmet offers the protection needed to confidently rip down technical descents, along with extensive ventilation for those unforgiving climbs back to the top. Standout features include an innovative eyewear stowing mechanism that securely fastens your sunglasses to the top of the helmet during extended climbs or long breaks, as well as a trusty BOA FS1 360-degree fit system for a comfortable and easily-adjustable fit. A tough polycarbonate shell molded to a shock-absorbing EPS liner protects against high and low-speed impacts, while the MIPS Brain Protection System guards against harmful rotational forces experienced during certain types of crashes.

  • Oakley's sleek new helmet for trail riding and enduro
  • Offers extended coverage and plenty of ventilation
  • Eyewear stowing mechanism securely stashes your shades
  • BOA 360-degree fit system for a comfortable, micro-adjustable fit
  • Tough outer shell with impact-absorbing EPS foam for protection
  • MIPS system designed to reduce harmful rotational impact forces
  • X-Static pads channel sweat away from eyewear for clear vision
  • Straps allow fore and aft adjustment to prevent discomfort

California Proposition 65


This product can expose you to chemicals including Bisphenol A (BPA), which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.

Tech Specs
Shell Material
Impact Foam
large intake and exhaust vents
Fit Adjustment
Boa FS1 360-degree fit system
Recommended Use
enduro, trail
Manufacturer Warranty
limited lifetime


Head Circumference

20.1 - 21.7in

(51 - 55cm)

21.7 - 23.2in

(55 - 59cm)

23.2 - 24.8in

(59 - 63cm)






Head Circumference

20.5 - 22in

(52 - 56cm)

21.2 - 22.8in

(54 - 58cm)

22 - 23.6in

(56 - 60cm)

Hat Size

6 1/2 - 7 1/8

6 3/4 - 7 3/8

7 1/8 - 7 5/8

How to Measure:
Measure around your head where your hat would fit comfortably.

View more Mountain Helmets

    What do you think about this product?


    >Rating: 5

    Love it

    Runs large
    Size Bought

    good fit

    >Rating: 5

    Sweat Gutter works fantastic!

    I've used it several times

    This helmet was a major step up from my fox flux. The best feature is the sweat gutter. Once you have the helmet snugged up it works great. No more sweat dripping in your eyes! The boa closure is also great allows a custom fit. Venting works as advertised. All around great helmet!