The Merrell Morphlite road-to-trail running shoe brings together dual-purpose technologies for multi-terrain movement. This shoe features our best running shoe foam for premium comfort atop a custom lug pattern designed for road runs throughout the center Details: Internal bootie for locked-in fit. Cleansport NXT™ treated for natural odor control. FloatPro™ Foam midsole for lightweight comfort that lasts. Merrell sticky rubber outsole with durable traction that grips when and where you need it.