The hybrid design of the Merrell MQM Flex GTX hiker shoe is inspired by athletes but made for the everyday hiker who wants to take their performance to the next level. Mesh and TPU upper. GORE-TEX® waterproof membrane, bonded InvisibleFit construction for lightweight, breathable protection that fits and feels like an unprotected shoe. Hyperlockâ"¢ printed TPU film heel counter for security. Traditional lace closure. Bellows tongue keeps debris out. Breathable mesh lining. Removable EVA footbed provides underfoot comfort and support. Merrell Air Cushion in the heel absorbs shock and provides added underfoot comfort. TrailProtectâ"¢ pad offers additional support off road. FLEXconnectâ"¢ dual-directional flex-groove EVA midsole for agility and stability. M Selectâ"¢ GRIP outsole tunes each outsole with durable traction that grips when and where you need it. 3.5mm lug depth. Imported. Measurements: Weight: 10 oz Product measurements were taken using size 8, width M. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.