Circuit Wavecel Bike Helmet Road Tires or getting around town

or getting around town

Designed for both comfort and speed

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

Prevents fogging in goggle lenses

Circuit Wavecel Bike Helmet Road Tires or getting around townIf 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