Meets DOT standards (FMVSS218) <br> Lightweight polycarbonate shell <br> Quick release padded strap <br> Adjustable air intake lower rail <br> Dual locking upper intake vents <br> Interior cooling channeling system <br> Removable/washable liner with contoured cheek pads <br> Optically correct clear Lexan face shield with anti-scratch coating <br> Quick change face shield brackets<br><br>Size Chart:<br><br>Small: 22-22 ½”<br>Medium: 22 ½ - 23”<br>Large: 23 - 23 ½”<br>XL: 23 ½ - 24”<br>XXL: 24 - 24 ½”<br>XXXL: 24 ½ - 25”<br>XXXXL: 25 - 25 ½”<br><br>The Typhoon K77 full face helmet offers a lightweight everyday use helmet packed with features and designed for comfort. With sturdy adjustable ventilation, moisture wicking liner, and interior channeling, the K77 is perfect for riding in hot or cold weather. An anti-scratch, impact resistant clear face shield comes installed with quick-change brackets for swapping for a tinted option (sold separately). A removable breath deflector helps to reduce condensation and keep the helmet cool. Securing a proper fit and removing the K77 full face helmet is easy thanks to the quick release strap.