Merrell Jungle Trek Mules. A contemporary take on the icon, the Jungle Trek Mule reimagines the classic slip-on through a modern, design-forward lens. Drawing on proven performance technologies from our trail heritage, it delivers lightweight comfort, confident cushioning, and all-day support in a sleek, slip-on silhouette. Suede leather upper. Neoprene stretch collar for easy on and off. Breathable mesh lining. Removable PU footbed. FLEXconnect® dual-directional flex-grooves in the midsole for enhanced ground connection. FloatMax™ foam midsole for a soft and smooth underfoot experience. Merrell sticky rubber outsole with durable traction that grips when and where you need it. Imported.