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Styled for maximum airflow and go-fast good looks, the lightweight, 21-vent, women's specific Circuit WSD helmet was designed using Computational Fluid Dynamics, for an air-gobbling shape that delivers superb ventilation and unbeatable air flow.
Features
- Lightweight road helmet for superior performance
- 21 CFD software enhanced vents for maximum airflow and efficiency
- Premium, wicking fit pads
- One-hand adjustable Zip-Tite fit system
- Two sizes assure the best fit
- In-molded strap retention system with Lockdown strap adjusters
- As part of Trek's 1 World 2 Wheels commitment, $1 of each Trek helmet sale will be donated to Bicycle Friendly Communities