New with tag backpack Designed to keep your items within easy reach and organized, the TLD Yamaha L4 Genesis backpack is a must whether you're at the moto track or rushing to your next class in school. Adjustable straps ensure the perfect fit and the heavy-duty nylon construction is made for abuse. And thanks to the large Yamaha lettering and tuning fork logo, everyone will be sure to know just where your loyalties lie. Troy Lee Designs Yamaha collection. Heavy-duty nylon ripstop backpack.