Name: Hayatsuki GTX - Men's
Brand: AKU Outdoor
SKU: 920638.5
Price: 499.95 USD
Availability: OutOfStock

TAKE ON THE STEEPEST AND MOST TECHNICAL TERRAIN

$499.95

The Hayatsuki GTX - Men's is Listed in US Men's Sizes

Low stock - 1 item left

The Hayatsuki GTX is perfect for hard mixed terrain at high altitudes up to 4,500 meters. Handcrafted by AKU in Montebelluna, Italy and designed with elite athletes in mind
Full Description

GORE-TEX Insulated Comfort + PrimaLoft
Keep your feet warm and dry in all mountain conditions with the integrated waterproof GORE-TEX Insulated Comfort+ membrane. With added Primaloft insulation, you will be sure to stay warm.

Vibram Curcuma
The VIBRAM Curcuma mountain sole is crampon compatible and designed to carry you through any terrain. From rugged trails to steep snow and ice, it is there for you.

Elica Natural Stride System
Our Elica Natural Stride System ensures an anatomical fit to provide better stability and weight distribution across your boot sole to reduce pressure points and encourage better form and performance.

Lining Description: GORE-TEX® Insulated Comfort + PRIMALOFT
Sole: Vibram Curcuma Mountain Sole
Footbed: AKU Custom Fit Insole with Aluminum Insulation
Stiffness: Extra-Stiff
Lasting board: 4-6mm Fiberglass & Die Cut EVA
Midsole: Double Density Polyurethane ExoSkeleton
Upper: 3.0mm Italian Perwanger Leather + Elastic Textile + AIR8000®
Resoleable: Yes
Weight: 914grams Per Boot
Handcrafted By AKU in Italy

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Excellent Pair of boots and sizing.

I wear a UK 10, 4E / EU 45 pair of Brooks Running Shoes. The AKU 46.5 is perfect for me considering I'll be using it at very high altitude. It is reasonably warm, and sufficiently waterproof. Layer up socks accordingly for colder temps.

AKU is perhaps the only boot which doesn't squeeze my toes. Which is probably the most important factor to protect against frost bite.

I would love to see a double boot from AKU for -40 to -50 ° C. I will surely buy it.

Outstanding customer service.

The boots are great. I wear a size UK 10 / 4E width running shoes. UK 11.5 is a good technical fit for me, including accommodating for swelling of feet at altitude.

Superb mountaineering boot - great fit for my foot shape

Overall I am extremely satisfied.
I have a slightly wide feet compared to it's length which make it sometimes challenging to find a right fit. those boots are super confortable right out the box and fitted around my feet shape and ankle way better than other iconic mountaineering boots brand.

So far I have been using them mostly while ice climbing.
I usually wear a 10.5 for trail running and hiking shoes, I choose a 11 and I have not suffered any toes injury from hitting ice wall. My feet and ankle feels snug and well maintained yet not restricting bloodflow and I can move around my toes individually if needed.

My feet have stayed warm while being outside all day at -20C while alterning between static and active phases.

The lacing system is extremely convenient, enabling you to dial the tightness independently between the ankle and the feet.

Patricia from customer service was very helpful in answering my question about the product.

The only downside I found so far, it that they tend to loosen up a bit as the day goes. This might get better the more they break-in thought. I also wished they were a tad lighter (2080 gr/pair Size 11)

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Hayatsuki GTX - Men's

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