Verdict from 1 expert and +100 user reviews

6 reasons to buy

  • Numerous adventurers find the Mammut Mercury III Mid GTX to be an insanely comfortable day hiking boot.
  • According to a tester, its cushioning is off the charts.
  • More than a handful of wearers appreciate the Vibram outsole’s traction on a wide variety of surfaces.
  • A majority of buyers confirm that this Gore-Tex boot for hiking offers sufficient protection from wet conditions.
  • Its lightweight construction leaves countless shoppers in awe.
  • Based on a couple of  Mammut Mercury III Mid GTX reviews, this boot’s break-in period is close to none.

3 reasons not to buy

  • Several purchasers say that the Mammut Mercury III Mid GTX hiking boot is not breathable.
  • Some report that this day hiker is slightly expensive.
  • Its toe box is too narrow, testifies a few outdoor lovers.

Bottom line

Outdoorsy individuals may find a delightful experience when using this comfortable and lightweight boot for day hiking. Its waterproofness and surface grip are also some of the attributes that leave users astonished.

However, there were some who mention that the footgear is too warm for their tastes. All in all, the Mammut Mercury III Mid GTX may come off as a capable boot for hikers who value comfort and protection when searching for an outdoor pair.

Tip: see the best hiking boots.

Good to know

-The women’s and men’s Mercury III Mid GTX is an above-the-ankle boot engineered with various technologies for day hiking trips. Its upper is made of Terracare nubuck leather, an eco-friendly material sourced from renewable energy sources. A Gore-Tex membrane lines the upper to keep water out.

-The footgear’s ethylene-vinyl acetate (EVA) midsole is paired with a patented Rolling Concept technology. These components supply a cushioned ride while encouraging the foot’s natural rolling movement. Its Vibram Frog outsole grants traction on most types of surfaces.

The Mammut Mercury III Mid GTX is a mid-top hiking boot made for men and women. It comes with a durable Polyamide lacing system, which grants wearers with a customized lockdown. The upper and footbed are lined with a layer of 3D memo foam to give a comfortable fit.

This Mammut boot for day hikers comes with a Vibram Frog outsole to help outdoor lovers traverse challenging trails. It features a pattern of hexagon-shaped lugs to render multi-directional traction on virtually all types of terrain. Its rearfoot zone uses both a heel brake and several grooves to facilitate extra stopping power when going downhill. The sole’s front end covers an area of the toe box to prevent the foot from getting stubbed.

The Mammut Mercury III Mid GTX uses a midsole made of EVA foam, a material that delivers cushioning. It is also known to give rebound and reduce shock from uneven terrain. A molded footbed lined with 3D memo foam sits on top of the footbed. It is crafted to give extra cushioning, arch support, and underfoot comfort.

Mammut’s Mercury III Mid GTX is equipped with an upper made of Terracare nubuck leather. This German-produced material is constructed used eco-friendly methods to reduce its carbon footprint. A Gore-Tex Performance Comfort membrane lines the upper to prevent water from penetrating it. This component also allows excess moisture to pass through, making it breathable.

This Mammut product employs several fabric loops and metal hooks to promote fit management. The upper features a toe cap made of Liquid Rubber to reinforce it and provide resistance to abrasive elements.

The Mercury III Mid GTX from Mammut and Merrell Moab 2 Mid Waterproof are both above-the-ankle hiking boots made for single-day trips. They come with various technologies that help outdoor enthusiasts complete their adventure with sufficient comfort and protection. Shown below are some of the qualities that set these two offerings apart.

Waterproof Membrane. The Merrell Moab 2 Mid Waterproof uses a patented M Select Dry to keep water out of the upper. Its design also allows excess moisture to pass through, making it breathable. On the other hand, the Mammut Mercury III Mid GTX comes with a Gore-Tex Performance Comfort liner. The surface of this membrane uses more than a million microscopic holes to prevent water from penetrating it while enabling heat to escape.

Upper. Merrell’s Moab 2 Mid Waterproof is equipped with an upper made of suede leather and mesh fabric. These materials imbue the footgear with sturdiness, lightness, and breathability. Its front tip houses a rubber rand, which grants durability and protection from trail hazards. Meanwhile, the Mammut Mercury III Mid GTX uses a Terracare nubuck leather upper, a material tougher, and more eco-friendly than suede.

Weight. The Moab 2 Mid Waterproof for men has a weight of 506g while its women’s variant weighs 452g. The Mercury III Mid GTX, which is only available for male hikers, is heavier at 540g.

Price. The Mammut Mercury III Mid GTX is significantly more expensive than the Merrell Mercury II Mid GTX.

Midsole. The Merrell Moab 2 Mid Waterproof uses an EVA midsole and an Air Cushion feature in the heel area. These two components work together to deliver cushioning and reduce shock from uneven trails. The Mammut Mercury III Mid GTX supplies these benefits using its EVA midsole and 3D memo foam-equipped footbed.

  • Those looking for a better range of ankle movement might want to consider this boot’s shoe version, the Mammut Mercury III Low GTX.
  • Outdoor enthusiasts in need of more durability and support for multi-day trips may look into the benefits offered by the Lowa Camino GTX.
Paul Ronto
Paul Ronto

Paul loves adventure. Over the past 20 years, he has climbed, hiked, and ran all over the world. He’s summited peaks throughout the Americas, trekked through Africa, and tested his endurance in 24-hour trail races. He has worked in the outdoor industry as a whitewater and hunting guide, gear tester, copywriter, and outfitting specialist at places like The National Outdoor Leadership School, No Barriers USA, and Sierra Trading Post. He has been quoted in NYMag, NBCNews, and Business Insider to name a few.