A dynamic trail running shoe built for comfort, from mile one to the end.ULTRA FLOW 2, the trail running shoe that makes endurance feel effortless.Constructed with optiFOAM midsoles for dynamic cushioning, our trademark sole technologies for a reassuring grip in all conditions, and lightweight, breathable uppers for superior comfort from start line to finish.FEATURES:-Dynamic Cushioning.-Made with optiFOAM and a deep stack for cushioning, plus our relieveSPHERE technology for optimal pressure dispersal, stride after stride.-Grip.-Featuring hardwearing Contagrip® soles, for a reassuring grip on all terrains and in all conditions.-Snug Fit.-Developed with sensiFIT™ technology for a secure and comfortable foothold, a lightweight breathable upper.FEATURES:-All Terrain Contagrip®:Our All Terrain Contagrip® is built for the widest variety of surfaces.It delivers durability & confidence on wet, dry, hard or loose surfaces.-optiFOAM:Lightweight & cushioned EVA foam for a performance usage.-Relieve Sphere:The distinctive, wavy geometry of the outsole is specifically designed to diffuse pressure and to break down repeated underfoot impact for enhanced, durable comfort.-All Terrain Contagrip®.-optiFOAM.-Relieve Sphere.-All Terrain Contagrip®.-Our All Terrain Contagrip® is built for the widest variety of surfaces.It delivers durability & confidence on wet, dry, hard or loose surfaces.-optiFOAM.-Lightweight & cushioned EVA foam for a performance usage.-Relieve Sphere.-The distinctive, wavy geometry of the outsole is specifically designed to diffuse pressure and to break down repeated underfoot impact for enhanced, durable comfort.