Elevate your trail ride with the Trek Rally WaveCel Mountain Bike Helmet in White/Quicksilver (Size S). Designed for off-road performance, this helmet combines advanced safety technology with practical features to keep you comfortable and protected on every ride.

Features:

• Built with WaveCel® technology, a collapsible cellular liner that significantly reduces impact forces and enhances head-injury protection. 
• Equipped with the BOA® Fit system for one-handed, precise dial adjustment of circumference and height. 
• Trail-specific visor with adjustable positions for sun, rain, or handlebars visibility. 
• Strap management via LockDown® strap dividers for clean, secure fitting and styling. 
• Moisture-wicking, washable pads for long-ride comfort and hygiene. 
• Certified safety: Meets U.S. CPSC bicycle helmet standards and carries Trek’s Crash Replacement Guarantee for the first year. 
• Size S accommodates head circumferences approximately 51-57 cm. 
• Sleek White/Quicksilver colorway offers versatile style that pairs with any kit.