TREK Rally WaveCel Mountain Bike Helmet in Quicksilver

The TREK Rally Wave Cel helmet combines high-style trail design with advanced protection against cycling-related head injuries. Featuring Trek-exclusive Wave Cel technology—a collapsible cellular structure lining the helmet—this helmet disrupts traditional safety standards to provide superior impact protection.

Key Features WaveCel advanced helmet technology for leading head injury protectionBOA® Fit system for easy, one-handed adjustment and secure fit Adjustable visor for multiple coverage options LockDown dividers for clean and simple strap management Soft, moisture-wicking, and washable helmet pads for comfort Crash Replacement Guarantee: free helmet replacement if involved in a crash within the first year30-Day Unconditional Guarantee: return the helmet for any reason within 30 days