Circuit Wavecel Helmet size-30l with a comfortable fit to

with a comfortable fit to prevent bouncing while running

Upper Cuff Construction : 3D injection High Cuff free support

Laces Cover : Extra protection against snow to ensure the best insulation

Integrated Mips is designed to reduce rotational forces that can result from certain impacts

the wider brim allows more airflow

Circuit Wavecel Helmet size-30l with a comfortable fit toTrek Circuit Wavecel Helmet Whether your finish line is on the race course or your front door, Trek 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 the safety standards