Celebrating 40 Years of Creative Horsepower - Troy Lee Designs. Born in Corona, California A2 MIPS: Cooler, Faster Package The trailblazing A2 is Troy Lee Designs’ MTB trail helmet that checks all the boxes. Its stylish shell not only incorporates huge intake and exhaust ventilation ports, but it also comes with the very best in coverage. From breakaway visor screws and the innovative MIPS system and an industry-first dual-density EPP + EPS liner for both high and low-speed coverage; this is a helmet that doesn’t take your coverage lightly. Add in an adjustable strap and X-Static Pure Silver comfort liner and the comfort is every bit on par. A2 trail helmet is made for speed, comfort, coverage and style for trail riders of all levels-with roots in enduro racing, this helmet is the perfect coverage system for MTB trail riders of all types Coverage in mind Patent pending, industry-first dual density EPP (low speed) and EPS (high speed) coverage liner MIPS and liner MIPS and premium comfort liner that is quick dry. Combined with a 5 star rating from VT, you have the best in class Breakaway visor screws Innovative break-away anodized alloy visor screws help reduce the likelihood snagging during a crash Ventilation A2's stylish shell not only incorporates huge intake and exhaust ventilation ports, but it also comes with the very best in coverage What's in the Box A2 comes with helmet, custom A2 carrying bag, sticker sheet, manual