Several hikes in, they maintained a blister-free record – that is key for me as I blister very easily, particularly breaking in new boots. On first impressions, this boot had me at out-of-the-box comfort. Putting the Flex 2 through its trail-blazing paces was something of a challenge during lockdown, but fortunately, I found a few decent terrain types to take it for a test run. Due to the Gore-Tex, the uppers take a little longer to dry out once they’re pretty saturated. Merrell does a non-waterproof version that would be better suited for hotter hikes. The boots do run a little warm thanks to that Gore-Tex and would be better for winter/fall or colder climate adventuring because of this. (Image credit: Tara Gardner) Merrell MQM Flex 2 Mid GTX Women's review: Performance Continuing that protective theme, the midsole features a rock plate to shield against sharp surfaces, while the dual-direction flex-grooves enhance that ground connection with each stride. The tongue is also integrated with the smart lacing system, for ease of adjustments and any necessary fit fine-tuning.įocusing on protection in the rear foot, true to its previous model, the Flex 2 has a robust air cushion in the heel for shock-absorption, stability and to ensure the foot is correctly aligned regardless of the pace or incline. And, working in synergy with that waterproof mesh on the upper, the bellows tongue is perfectly designed to keep out any debris and lock the foot in place comfortably. It uses an InvisibleFit Gore-Tex – one continuous piece of material, to avoid any seepage or damp penetration through seams. It boasts two types of multi-directional cleats to support grip and give stronger traction.Īnother important new feature is its enhanced water-tight and weather-proof experience. It also features a braking section at the heel, to enhance stability on steep descents. The rubber outsole has been upgraded to the Merrell mountain-grade Quantum Grip, increasing the lug depth to 5mm, for improved traction. Launched in Spring/Summer 2020, the MQM Flex 2 Mid GTX keeps a similar look and feel to its predecessor, but with some key functional updates. (Image credit: Merrell) Merrell MQM Flex 2 Mid GTX Women’s review: Design