Full-face helmets offer the best level of protection for mountain biking, but are often cumbersome and lack the ventilation needed for anything other than downhill. Enter the Stage Mips Helmet from Troy Lee Designs. An impressively low weight combined with extensive ventilation make the Stage Mips our choice for enduro-style riding or racing, where technical descents worthy of a full-face helmet are mixed in with climbs and long transfer stages. It's still downhill certified, ensuring it can hold up to high-energy impacts if you're riding DH or bike park, but the lightweight and highly-ventilated design make it much more enjoyable for the rides when you have to earn your descent first.