Verdict from 1 expert and 5 user reviews

5 reasons to buy

  • Featherweight: Numerous reviewers find the Merrell MQM Flex 2 Mid GTX immensely light. A few of them even likened said shoe to a pair of sneakers in this regard.
  • Instant comfort: Its incredible plushness is available right from the start, many trail-goers say.
  • Watertight: According to a trusted blogger, the MQM Flex 2 Mid GTX “delivers robust water and weatherproofing.”
  • Sticky: To a gear critic, this Merrell offering comes with a super-grippy outsole.
  • Supportive: Your ankle will be kept safe and secure in this boot.

2 reasons not to buy

  • Below-average protection: The MQM Flex 2 Mid GTX’s cushy midsole could be more protective against sharper rocks, says an expert.
  • Weak rubber bumper: Based on a few reports, the toe cap of this piece peels off way too soon.

Bottom line

If dazzling your co-adventurers with quick and agile movements is what you have been dreaming of, the MQM Flex 2 Mid GTX must be on your radar. Yes, a strong dose of athleticism is yours in this hiker, all while giving you shielded comfort through the changing weather. As long as you keep to the manicured parts of the trail, this gear from Merrell can be the only boot that you will ever need.

Tip: see the best hiking boots.

MQM Flex 2 Mid GTX: An agent of upgraded rides

As a successor to the first iteration, the MQM Flex 2 Mid GTX is built to produce better results around the backcountry. To that end, the genius shoemakers behind its creation deemed it only fitting for the featured boot to have the following upgrades:

Waterproofing in every direction. With its seamless (a.k.a. InvisibleFit) construction, this waterproof liner from Gore-Tex provides 360° protection from virtually all sorts of moisture. And with the boot’s bellows tongue, your precious tootsies will experience dryness through some 3-4 inches of water.

More protection underfoot. Unlike its predecessor, the MQM Flex 2 Mid GTX comes with a rock plate. Located around the forefoot, this new addition grants extra protection against pointy rocks without downgrading ground feel.

Bitier outsole. The heavy-duty outsole of the MQM Flex 2 Mid GTX is dotted with 5-mm lugs, which are 1.5 mm deeper than those on the original. Translation: You will have enhanced clawing power on rockier terrain and muddier soil in this updated hiker.

Additional info

  • If you are someone who banks heavily on ankle freedom, try the low-top MQM Flex 2 GTX instead.


How Merrell MQM Flex 2 Mid GTX ranks compared to all other shoes
Bottom 25% hiking boots
All hiking boots
Bottom 34% Merrell hiking boots
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Bottom 26% day hiking hiking boots
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The current trend of Merrell MQM Flex 2 Mid GTX.
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Paul Ronto
Paul Ronto

Over the past 20 years, Paul has climbed, hiked, and ran 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 analyses every detail of the shoes that you might buy.