The run doesn't stop where the asphalt ends. Your run doesn't stop where the road drops off. This is gravel. DRX DEFY GRVL is a guided lightweight trainer that empowers you to keep going, even off the pavement. A plush 360 ° wrapping system holds you in, delivering just the right amount of support. Dare to escape the beaten path and to defy the gravel. Built on our exceptionally light and extremely responsive optiFOAM for premium cushioning and rebound. activeCHASSIS channels your body's natural movements to bring light guidance at the rear and a balanced, natural stride. Featuring a gravel bike inspired outsole with tread designed for grip, so you can confidently switch from asphalt to gravel and back again.