Klim recently released it lightest and most technologically-advanced (and most expensive) helemet to date: the F5 Koroyd. 

The F5 Koroyd features a new impact material that replaces the traditional EPS foam in the crucial parts of the helmet. The Koroyd helmet features:

• Full Klim Karbon Fiber shell
• MIPS Technology
• Hybrid impact protection
• Koroyd Technology
• Dual-Density EPS
• Extra-Large eyeport
• FID-LOCK strap closure.
• 18 Intake vents
• 8 Exhaust vents
• Designed to intake air at speed and exhuast head at low speed
• DOT certified
• ECE certified 
• $649.99 MSRP

What is Koroyd?

Where Did Koroyd Come From?

How Does Koroyd Perform?

How Does Koroyd Breathe?

How Does Koroyd Outperform EPS?