Fly Racing Evolution Vertigo Pants Magnetics – pushing technology forward, FLY Racing introduces patent pending magnetic technology, for the first time ever, into MX pants Patent Pending 2d Buckle System® – flattest buckle system ever made in MX pants; built for safety, strength, & maximum adjustability; invented by Fly Racing, & the first of its kind on the market Zipper Lock System – exclusive zipper lock system keeps pants closed & secure Stealth Vent – zipper located on each leg allows for adjustable ventilation Advanced Liner – stretchy Lycra® seat panel sewn to a breathable light mesh reduces pulling Advanced Ventilation – highly functional ventilated knee, thigh, calf, seat, crotch & back of knee Perforated, Ultra-durable, 900D Construction – to withstand the rigors of track & trail while providing extra breathability Boot-Tether Compliant – the first production pant with three-level tether eyelets for easy installation of knee brace boot tether straps Leathe