The A+ of Trail Helmets

Head of the class, A3 leaves nothing to chance by setting the modern standard in protection and fit as demanded by Troy Lee Designs' athletes. Equipped with Mips® protection, the co-molded EPP/EPS design features sixteen vents to optimize airflow making for a helmet that is so comfortable it practically disappears on your head.

This helmet is designed and intended exclusively for use by bicycling activities, including mountain biking and off-road cycling.


- Co-molded EPP and EPS

- Mips® B-Series Rotational Impact Brain Protection System

- Advanced layering 3-piece shell

- 3-Way Magnajust® visor

- Sweat Glide System - EVA wicking foam

- 2-piece Ionic® comfort liner

- 16 vents optimally tuned with the channeling of the helmet

- Premium 3D Fidlock® magnetic buckle system

- Composite smart shear screws

- 415G