Verdict from 1 expert and 96 user reviews

6 reasons to buy

  • An avid backpacker praised the Aku Slope GTX’s Air 8000 fabric. He mentioned that it worked well in keeping a cool in-shoe feel.
  • The sticky outsole of the boot was commended by a couple of owners.
  • A verified purchaser was impressed with the lightness of this backpacking gear.
  • The comfort provided by the Aku Slope GTX pleased the majority.
  • Several wearers appreciated its good looks.
  • The quality of the materials used in this Aku product received positive remarks from a few.

1 reasons not to buy

  • A portion of those who bought the boot stated that its narrow forefoot was a letdown.

Bottom line

Aku’s Slope GTX is working its way to the hearts of backpackers through its set of fine features. Those who love the outdoors may find its breathability and comfort amazing. Also, its grippy outsole will render confidence on the trails. Not to mention, all these traits are packed in a lightweight build. However, its restrictive fit misses the mark. All in all, narrow-footed outdoorsmen may find the Slope GTX from Aku a satisfying trail gear.

Tip: see the best hiking boots.

Good to know

  • A long-standing backpacking boot from Aku, the Slope GTX is ready for treks in easy-to-moderate terrain. Its upper wears a suede leather partnered with the brand’s very own breathable Air 8000 fabric. It is lined with a full Gore-Tex bootie to make it weatherproof.
  • It employs a bi-density ethylene-vinyl acetate (EVA) midsole for lightweight cushioning. It works with a lasting board and Custom Fit insole which grants underfoot rigidity and comfort, respectively. Its Vibram Erica Everest outsole makes it grip on most types of terrain. 

The Slope GTX from Aku is a men’s-only backpacking boot. It is available in whole and half sizes in a standard (D) width option. It relatively runs true to size.

This boot is shaped using the Anatomical Fit last which aims to provide stability on bumpy grounds. It has a traditional lace-up closure which enables hikers to personalize the overall fit and volume.

The brand’s engineers equipped the Slope GTX with a Vibram outsole called the Erica Everest. The protrusions on the side of the sole grant stability and grip on uneven terrain. The studs at the center are designed to offer multidirectional traction.

This high-cut leather hiking boot employs a dual-density die-cut EVA midsole. It cushions each step without the added weight to the user’s foot. A lasting board made of 4-2 mm Texon and TPU yields underfoot flexibility. A Custom Fit insole, on the other hand, enhances shock absorption and manages moisture for a more comfortable environment.

The Aku Slope GTX uses durable Italian suede leather for its upper. It is combined with an Air 8000 fabric (1.6 mm) which makes the boot lightweight and extra breathable. Underneath these materials is a Gore-Tex Performance Comfort lining which gives a modest amount of insulation, prevents water intrusion and expels moisture out.

Its tongue and collar are cushioned which enhance comfort. Also, to manage fit, its lacing system uses metal D-rings, speed hooks and a flat lace.


How Aku Slope GTX ranks compared to all other shoes
Top 8% hiking boots
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Top 20% Aku hiking boots
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Top 13% backpacking hiking boots
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The current trend of Aku Slope GTX.
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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.