Channel, 2x4, 4x4 Compatible with the Channel, 2x4, and 4x4 mounting systems
Combined with The Channel Board Mounting System, you have complete control over your Stance, allowing you to customize your setup as desired

Key Features SAFETY & SHELL Constructed with injected thermoplastic (HIRP) shell and certified to ECE 22.06 and DOT standards Comes in two shell sizes (XSS and MXXL) Accommodates head sizes from XS up to XXL and beyond Helmet weight approximately 1,550 g 50 g VISOR SYSTEM 2.2 mm optical polycarbonate visor, anti-scratch and UV-resistant Dymanix Tech quick-release visor system (tools-free visor swaps) Compatible with Pinlock 100% Max Vision insert VENTILATION & AERODYNAMICS Two top intake vents, two front/chin vents, and two rear exhaust vents Integrated aerodynamic spoiler Large nose deflector and chin curtain COMFORT & INTERIOR FIT Anti-allergenic, removable and washable liners Multi-density EPS core for tailored impact absorption Internal ear pockets for intercom systems Micrometric buckle closure (quick-release) for secure fit Sizing Guide (cm) XS 53-54 S 55-56 M 57-58 L 59-60 XL 61-62 2XL 63-64 Motorcycle helmets are designed for a close and comfortable fit, but can change size with use

Pros Incredible materials and strong zippers
Durability We tested packs with quality materials and construction that could withstand the wear and tear of constant and varied use, like being tossed into cars or overhead bins, thrown to the dirt while crewing an ultramarathon, enduring long bouts of rain in Scotland and the Pacific Northwest, and being sprinkled with dirt and climbing chalk at the crag
All returns: Refunds, less original S&H fees, will be credited to the original credit card account used for purchase within 30 days after the return is received