The roads fastest hits the Trail. Max off-road speed and cushioning.The Endorphin Trail (Campfire Story edition) takes our revolutionary SPEEDROLL Technology off-road for the first time, giving you a running experience like no other. This lightweight yet maximally cushioned shoe will carry you up, down, and over even the gnarliest of trails, taking speed and comfort to a whole new elevation.FEATURES+ SPEEDROLL Technology propels you forward effortlessly, so you can run faster, not harder+ Get incredible spring and energy return from a thick bed of ultralight PWRRUN PB cushioning+ A durable net mesh protects your cushioning from rugged terrain+ Comfortable, quick-fit trail sleeve protects against dirt and debris+ FORMFIT hugs the foot in 3D comfort for a personalized fit+ Full-length PWRTRAC outsole for incredible traction on rough, uneven surfaces+ Versatile ascent/descent-friendly lug configuration+ D-ring for gaiter compatibilitySPECS+ Trail outsole lug height: 4.5mm lugs+ Lighter footprint: This style contains recycled materials+ Category: Trail, Neutral+ Heel-to-toe Offset: 4mm (36.5mm heel/32.5mm forefoot)