Circuit Wavecel Bike Helmet Road Tires The Lithium 20 is made

The Lithium 20 is made mainly from recycled materials and the durable water-repellent treatment is PFC-free

one-piece lens for enhanced eye protection and visibility when hitting the trails

the Siren Hipkini features ultra-lightweight corespun merino blend fabric that’s durable

pain-free pedaling

Prevents fogging in goggle lenses

Circuit Wavecel Bike Helmet Road Tires The Lithium 20 is madeIf you get just one helmet, make it this one. Whether your finish line is on the race course or your front door, Trek's Circuit WaveCel delivers the performance, comfort and tech to be your go to helmet. It's equipped with features that any rider will appreciate, like WaveCel technology, a BOA Fit System and Blendr mount systems. WaveCel is a collapsible cellular structure that lines the inside of the helmet. This Trek exclusive technology disrupts