The Klim F5 is the ultimate all-day helmet. Designed 100% from the ground up, only the best designs, years of rider feedback, testing data and cutting-edge technologies are integrated into this revolutionary lid. Combining extremely low weight, intuitive venting, and next-gen safety features, Klim has engineered the F5 to provide the best possible riding experience in the most demanding environments, all day.
Full Klim Karbon Fiber shell.
One of the lightest helmets in the industry.
Extra-large eye port for maximum field of vision.
Dual density EPS.
Wind tunnel tested.
FID-Lock® strap closures (extremely easy to take helmet on and off).
Most ventilated helmet in the industry.
18 intakes and 8 exhaust vents.
Direct vent EPS design.
Designed to intake air at speed/exhaust heat while at low speeds or stopped.
Shell structure designed for maximum strength while remaining lightweight.
Neck brace compatible.
Exceeds ECE certifications.
Anti-microbial and anti-bacterial materials.
Moisture-wicking Drylex® comfort liner.
Includes: Helmet bag, breath box, Windstopper® liner, and extra peak visor.
For proper fit and size measure the circumference of your head 1" above your eyebrows and around the largest portion of the back of your head.
21 4/16" - 21 11/16" -------- Small
22 1/16" - 22 7/16" --------- Medium
22 13/16" - 23 4/16" --------- Large
23 10/16" - 24" ------------- X-Large
24 7/16" - 24 13/16" -------- XX-Large
25 3/16" - 25 10/16" -------- XXX-Large