Verdict from 9.8 hours of research from the internet

6 reasons to buy

  • The Mammut Mercury III Low GTX has been applauded by a number of owners for having an intensely grippy Vibram outsole.
  • This promising shoe-type hiker is considered a wise investment by some. 
  •  A user has praised the footgear’s superb stabilizing capability.
  • Its extreme lightness has floored a wearer completely.
  • An owner finds the men’s Mammut Mercury III Low GTX hiking shoe an excellent product in terms of waterproofing.
  • The shoe’s overall craftsmanship has deeply impressed a hiking enthusiast.

1 reasons not to buy

  • One of the people who reviewed the Mercury III Low GTX rants about the gear’s stiffness.

Bottom line

Being geared up with the Mammut Mercury III Low GTX means being seen in a superbly lightweight hiking shoe. Wearing one also translates to covering trail miles with incredible surface grip and ground stability. The only downside to this pretty valuable product, however, is its allegedly stiff-as-a-board construction. To sum up, the Mercury III Low GTX is one Mammut product that has the potential to be the next go-to hiking footgear of many—especially once it softens up a little bit.

Tip: see the best hiking shoes.

User reviews:

  • The Mammut Mercury III Low GTX is a board-lasted footgear designed to give hikers a combination of comfort and protection on the trail. It can withstand abrasions and wear and tear thanks to its critical zones having been imbued with Liquid Rubber reinforcements.
  • Its rockered sole unit, which consists primarily of the shoe’s sturdy midsole and Vibram outsole, is engineered with Rolling Concept. This Mammut-patented technology, which is also found in the T Aegility Low GTX and the T Aenergy Low GTX, assists the foot during transitions, thereby making every stride less tiring. Its presence also prevents ankle-related injuries.
  • The grounded look of the Mercury III Low GTX may be exclusively linked to its Terracare leather upper. Just like its predecessor, it is lined with a Gore-Tex membrane for water protection. The apparent change in the upper is the design on the overlay. It is less pronounced than the one seen in its precursor.

Mammut’s Mercury III Low GTX is a relatively true-to-size, low-top day hiking shoe for men. It is built for wearers with standard-width feet. Its sizing selection consists of half and full sizes. Users may customize its fit using the hiker’s ghillie lacing.

This waterproof hiking shoe from Mammut gets to provide adequate footing security over various types of terrain with its Vibram outsole with Frog Grip technology. Hardwearing hexagon protrusions (also known as lugs) dot its surface, allowing users to gain and maintain grip in practically every direction. It is engineered with horizontal grooves at the forefoot to allow the shoe to flex with every stride. It also comes with a low-profile heel brake for improved maneuverability during tricky descents.

The Mercury III Low GTX has a stout yet cushy midsole for underfoot protection, comfort, and stability. It is capable of mitigating shock on impact with its thickly constructed heel zone. Its cupped design gives the shoe enhanced sturdiness and support.

Sitting right on top of this springy unit is the footgear’s removable insole. Mammut engineers gave it a contoured build to up the shoe’s underfoot support. They also furnished it with enough padding to provide wearers with extra cushioning.

The low-cut upper of the Mammut Mercury III Low GTX is made of nubuck leather from a proudly German brand, called Terracare. Its bootie has the Gore-Tex Performance Comfort technology, which makes the hiking shoe breathable enough on the inside while sufficiently waterproof on the outside. The parts that hug the user’s ankle are moderately lined with cushy padding for additional in-shoe comfort. Its lacing system is made up of a synthetic lace and combination eyelets.

Size and fit

True to size based on 63 user votes
Small (27%)
True to size (73%)
Large (0%)
Add rating

Calculate size

Fit
Tight Loose

How Mercury III Low GTX compares

This shoe: 80
All shoes average: 86
59 99
This shoe: $140
All shoes average: $130
$45 $240
This shoe: 14.8oz
All shoes average: 13.9oz
6.5oz 23.3oz
Author
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.

paul@runrepeat.com