The Mantra 2.0 utilizes a molded polyurethane midsole which is very unique in a low shoe. The leather upper provides additional rigidity and support, not to mention protection from the sometimes evil inconsistencies of the trail. Keeping true to its higher-end feature set, the Mantra 2.0 is also available with a Gore-Tex lining. GORE-TEX is the ultimate system for durable waterproofing and breathable comfort. Vibram rubber compounds deliver superior grip, traction and durability.