Adults

Always Evolving It wasn't easy to improve upon the class-leading design and function of our D3 helmet, but we made it happen. Built with an aerospace shell design and materials, we were able to get the D4 Composite helmet to 1050 grams without sacrificing any strength. MIPS C2 protection system is used to add an additional layer of safety in the event of a fall. For comfort, the D4 Comp routes cooling air through a front air intake system that flows through the polymer center and power grid side mesh keeping your head cooler during the ride. X-static® and XT2® anti-microbial/anti-odor padding keep the inside of the helmet a much nicer place to be. Specifications - 20 high-flow intake and exhaust ports for maximum ventilation - Added EPS and new headform shape for improved impact performance - Full incremental sizing for greater range of fitment - Strategically placed interior chinbar shock pads for comfort and durability - Quick-release and contoured 3D cheek pads for emergency helmet removal - Purpose-built internal cavities for audio integration - Stainless steel chinstrap D-rings are light and strong - Includes TLD drawstring helmet sock - Exceeds bicycle certifications: CPSC 1203, CE EN 1078:2002+A1:2012 ASTM F1952-15, ASTM F2032-15, ASTM F2040-11 - Not intended for use with motorized vehicles

Fit, Protection, Style Here at TLD, styling, graphics, fit, function and safety are key in everything we create. After years of research and development, the Troy Lee Designs Team introduced the A1 helmet in 2013. We made one of the most comfortable MTB helmets on the market even safer with the addition of MIPS rotational brain protection. This lightweight, fully encapsulated all-mountain helmet utilizes maximum coverage and dimension to keep you safe and protected in all riding conditions. Whether you're charging single-track, riding dirt jumps or grinding out miles on the XC bike, the A1 helmet offers the premium fit, protection and style you want. "The A1 Classic MIPS Helmet takes top safety honors, earning a perfect 5-star rating in Virginia Techs impact test and was the number one tested mountain bike helmet." - VA Tech Helmet Testing Lab - Featuring MIPS Brain Protection System - a helmet integrated, low friction layer designed to reduce rotational motion transferred to the brain from angled impacts to the head - EPS impact liner maximizes impact protection while minimizing weight - Innovative break-away visor screws - 16 port hi-flow cooling system both pulls and pushes air for maximum ventilation - Ultra-plush quick-dry comfort liner is both removable and washable for maximum ventilation - Adjustable, cam-lock strap dividers allow customization for different head shapes and riding styles - CPSC 1203*, CE EN1078*, *Varies by regional standards