The Bell Avenue LED Helmet is designed for superior visibility during road trips. It incorporates a bright 20 lumens rear LED in the Ergo Fit system. It's discreet, highly visible, and easily rechargeable with a micro USB cable. The Bell Avenue helmet has 18 ventilation openings and the No-Twist Tri-Glides strap system. It’s unobtrusive, highly visible, easily rechargeable with an included micro USB, and it just might make the difference between being seen or not. We’ve incorporated a bright, 20-lumen rear LED into our easy-to-use Ergo Fit system. Super cool ventilation openings at the top. Construction - Fusion In-Mold Polycarbonate Shell.