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  • Deep EPS rear profile increases coverage in the back
  • 17 vents for maximum ventilation and airflow


View all Fox Mountain Bike Helmets

REI membership


Best Use Mountain Biking
Helmet Style Mountain
Construction Molded
Shell Material Polycarbonate
Material(s) EPS foam
Head Circumference
23.25 - 24.75 inches
21.875 - 23.125 inches
20.5 - 21.75 inches
Vents 17
Visor Yes
Weight 390 grams
Gender Unisex
Rated 3 out of 5 by from Nice fitting helmet I got this a few weeks back, great fitting helmet (I have a huge head 7.5") but should have gotten the META. the visor this helmet isn't long enough to keep sun out even with sunglasses. the Meta was $50 more but the visor is longer, Fox support says no other visors compatible with the Flux.
Date published: 2016-07-05
Rated 5 out of 5 by from Hundred Dollar Helmet for a two Dollar Head Took my MTB on Vacation to Monterey but left my Helmet at Home. Rode Helmetless to REI in Marina wear they had just what I needed. Great fitting stylish FOX Helmet. The Guys in the Bike Dept. where awesome.
Date published: 2016-09-08
Rated 5 out of 5 by from Great bucket, cost appropriate I purchased this helmet after a crash and ding on my old bucket. A month in and a ton of single track miles and I am pleased with the low weight, excellent fit, and durability of product.
Date published: 2016-08-05
Rated 5 out of 5 by from Bike helmet by FOX Terrific fit. Much better than the 5 or 6 helmets I have had over the past 40+ years.
Date published: 2016-06-26
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