- Waterproof mesh upper
- GORE-TEX waterproof membrane
- TPU toe cap
- Kinetic Fit removable insole
- Merrell Air Cushion heel
- FLEXconnect midsole
- Quantum Grip rubber outsole
- True sizing
The MQM Flex 2 GTX is forward-thinking take on the hallowed trail trainer. These have been made from a blend of waterproof mesh and waterproof GORE-TEX, which means – yep, you guessed it – they’re pretty darn waterproof. And thanks to those removable insoles, the cushioned heels and some curiously-titled FLEXconnect midsoles, they’re mighty comfortable too.