<!--ProdInc[300280964]/Mall:[backcountry_US]-->We''ve always loved Kask helmets for their superior comfort and quality, so we''re happy to see they''ve entered the world of gravity mountain biking with the Defender full-face helmet. It features a full carbon shell with 18 large ventilation ports, making for a strong, lightweight, well-ventilated helmet with full ASTM downhill race certification. The chin guard provides comprehensive coverage, and uses a replaceable foam air filter that preserves airflow while guarding against dust and debris. <h3>Details</h3> A lightweight, downhill-certified, carbon full-face helmet Ideal for downhill, enduro, and freeride mountain biking Carbon shell offers first-rate protection at a low weight Excellent airflow thanks to 18 large ventilation ports Engineered for the widest possible field of vision Double D-ring strap is a secure, trustworthy closure Includes breathable anti-odor padding and a helmet bag Quick-release cheek padding for easy cleaning and safe removal after a crash Item #KSKZ00C <h3>Tech Specs</h3> Visor : adjustable break-away Certifications : EN 1078: 2012+A1:2012, ASTM F1952-15, Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older Fit Adjustment : double D-ring closure Ventilation : HyVent (18 ventilation ports) Manufacturer Warranty : limited lifetime Claimed Weight : [medium] 1lb 10.5oz (750g) Shell Material : carbon