Who should buy the Merrell MQM Flex GTX 

Designed with athletic mobility in mind, the Merrell MQM Flex GTX is powered by technologies that enable day hikers to tackle trails with agility. It works well with: 

  • individuals who want a breathable upper yet does not want to sacrifice protection against wet elements on the trail
  • outdoorsy people who seek flexibility and maneuverability on their hiking footwear

Merrell MQM Flex GTX brand logo

Merrell’s sticky M Select Grip outsole

Merrell’s MQM Flex GTX is engineered with the M-Select Grip outsole for traction. It promises wearers enough grip on most types of surfaces with its 3.5-mm, debris-shedding lugs. It is reinforced with the TrailProtect pad—another Merrell-exclusive technology that adds a layer of terrain protection for the user.

Merrell MQM Flex GTX M Select Grip outsole

This heavy-duty component has a narrow extension covering the tip of the forefoot. This covered part serves as the shoe’s toe bumper.

Merrell MQM Flex GTX toe bumper

MQM Flex GTX wears Merrell’s proprietary midsole

The MQM Flex GTX is capable of stabilizing the foot over uneven terrain with ample cushioning thanks to its FLEXconnect dual-directional flex-groove EVA midsole. Its forefoot has vertical grooves that allow the midsole to flex with better fluidity, giving hikers a sense of connectedness to the ground.

 Merrell MQM Flex GTX Flex Connect midsole

Its shock-absorbing capability is doubled down by the Merrell Air Cushion technology embedded in its heel zone. The cushioning it provides is further bolstered by the shoe’s removable EVA footbed.Merrell MQM Flex GTX heel support

Merrell MQM Flex GTX breathable upper

Merrell MQM Flex GTX mesh fabric

Protecting the foot from the elements is the footwear’s below-the-ankle upper. Both its exterior and inner liner are made of breathable mesh fabric, while its scuff-resistant overlays and heel-supportive Hyperlock heel counter are made of TPU.

Merrell MQM Flex GTX Gore-Tex

Its main bootie is crafted with a Gore-Tex membrane, granting the shoe adequate water protection. It has a bellows tongue that keeps debris out.

Merrell MQM Flex GTX tongue and lacing system

Facts / Specs

Weight: Men 324g / Women 276g
Base model: Merrell MQM Flex
Update: Merrell MQM Flex 2 GTX
Use: Day Hiking, Speed Hiking
Cut: Low cut
Features: Lightweight / Orthotic friendly / Removable insole / Antimicrobial, Heel brake

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Paul Ronto
Paul Ronto

Over the past 20 years, Paul has climbed, hiked, and run all over the world. He has summited peaks throughout the Americas, trekked through Africa, and tested his endurance in 24-hour trail races as well as 6 marathons. On average, he runs 30-50 miles a week in the foothills of Northern Colorado. His research is regularly cited in The New York Times, Washington Post, National Geographic, etc. On top of this, Paul is leading the running shoe lab where he cuts shoes apart and analyzes every detail of the shoes that you might buy.