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THE NEXT LINE OF INNOVATION

ULTRALIGHT MEETS DURABILITY

“Our partners at Toray Japan carry on this tradition of commitment to continuous improvement; they’ve developed an innovative new process to create a Primeflex fabric made from nylon, allowing KUIU to build new products at lower weights with better durability than ever before, without sacrificing the elastic-free stretch and comfort that hunters need.”

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KUTANA CONCEPT

Innovation is embedded in KUIU’s DNA. We are obsessed not only with improving our products, but with improving our customers’ overall hunting experience. The stretch nylon fabrics used in Kutana have been in development for four years due to our relentless commitment to improving durability and performance while reducing weight. Through continuous development and testing we created our next line of innovation, a collection of products that bring a new level of durability unmatched in its weight class.

KUTANA CONCEPT

2014

The beginning

In 2014, We reached out to Toray to see if they had a more durable nylon option for a concept we had been dreaming up. They came back with a two-way-stretch 70/80 denier Nylon 6/6 fabric that was lightweight and durable and stretched without the use of spandex. We used this new fabric to build a prototype rain gear that Jason tested on his 2015 Yukon moose hunt. Unfortunately, the membrane and DWR available were not a good match for the face fabric, and it was shelved for future projects.

2016

THE CHALLENGE

In June of 2016, KUIU’s design team approached Toray about creating a new nylon fabric that had more stretch than traditional nylon without performance-impairing Spandex. This launched Toray on the path to expand their primeflex family of fabrics by developing a new class of nylon fabrics called “Primeflex Nylon.” At the sametime, the design team was exploring new options for the 70/80D Nylon 6/6 fabric.

2017

THE MISSING LINK

In early 2017, the 70/80 Nylon 6/6 fabric found its first home as the reinforcement panels on the knees, seat, and cuffs of our now-popular Super Down Pro Pant. The wear-testing of a prototype pant concept began using the new Primeflex Nylon. This would eventually become the Kutana Stretch Woven Pant. Toray released their new Torain waterproof breathable membrane and a new DWR treatment. With a new membrane and DWR available, we saw an opportunity to revisit the nylon rain gear.

2017

THE VIABILITY

In the Fall of 2017, the new prototype rain gear samples arrived, made with the 70/80 Nylon 6/6 fabric, Torain membrane, and the more durable DWR. We sent one of the samples up to Jason’s longtime friend and well-known outfitter Lance Kronberger to test it against the harsh landscape of the Alaskan wilderness. Other samples were tested at the same time in MT, CA, and OR. The tests were a success, proving the viability of the fabric, membrane, and DWR combination. This was the test that proved the concept of Kutana was achievable.

2018

THE TESTING

KUIU spent 2018 prototyping and testing different combinations of the Nylon 66 and Primeflex Nylon fabrics. We tested variations of all Kutana pieces across the globe to solidify that these fabrics met KUIU’s standards. They passed the test, and we finalized development of the designs. The result is Kutana, a new class of stretch nylon products that improve durability in an ultralight weight class.

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Kutana Soft Shell

20.5 oz / 581 g

This soft shell jacket is an all-season outer layer designed to provide enhanced durability without sacrificing performance or increasing weight. Built with Toray’s groundbreaking stretch nylon fabrics, the Kutana Soft Shell Jacket is ideal for rugged terrain and thick vegetation where abrasion and pick resistance are non-negotiable in an outer layer. It delivers wind and weather protection across a wide range of conditions in the most punishing terrain.

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Kutana Soft Shell Kutana Soft Shell
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Kutana Stretch Woven Pant

13.4 oz / 380 g

A remarkably durable and lightweight pant designed to withstand formidable terrain. Toray Primeflex Nylon fabric provides abrasion and pick resistance unmatched in its weight class, with two-way spandex-free stretch. Articulated knees and a gusseted crotch allow for a full range of unrestricted movement, while low-profile cargo pockets provide storage with minimal bulk. Ideal for early-to-mid-season hunts in rugged conditions where durability is just as crucial as performance and mobility.

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Kutana Stretch Woven Pant
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Kutana 3DeFX+ Hybrid Jacket

13.6 oz / 386 g

Bridging the gap between insulation and outer layer, this jacket is designed with more durability than the average insulation piece. Its hybrid design places nylon-faced 3DeFX+ synthetic insulation in core areas for warmth and protection, and high-stretch breathable StrongFleece in heat-generating zones, particularly the back panel for excellent breathability while wearing a pack. Wear it as a lightly-insulated outer layer, or as a mid layer in colder conditions.

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Kutana 3DeFX+ Hybrid Jacket
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Kutana Storm Shell Jacket

18.3 oz / 519 g

Designed for the toughest hunts, this waterproof breathable rain jacket is built for durability at a backpack-friendly weight. Featuring a tough ripstop stretch nylon face fabric, backed with an entirely new Toray waterproof membrane and seam tape combination, the Kutana Storm Shell Jacket is the next line of innovation in protection and longevity. Designed as a full-featured jacket with all of the built-in pocketing, ventilation, and cinch options you need for a difficult hunt.

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Kutana Storm Shell Jacket
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Kutana Storm Shell Pant

15.5 oz / 439 g

If you’re preparing for a tough hunt that’s wet and brush-choked, you need protection with a rain gear system that’s durable, lightweight, and dries quickly. The Kutana Storm Shell Pant features an entirely new microporous hydrophobic membrane from Toray that breathes even when activity level is minimal, and absorbs very little water for incredibly fast dry times. The durable stretch nylon 6/6 face fabric offers great tear strength for its weight, and will stay dry longer due to a new, more durable K-DWR treatment.

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Kutana Storm Shell Pant
Kutana Storm Shell Pant Kutana Storm Shell Pant
Kutana Storm Shell Pant Kutana Storm Shell Pant
Kutana Storm Shell Pant Kutana Storm Shell Pant

Kutana Soft Shell

20.5 oz / 581 g

This soft shell jacket is an all-season outer layer designed to provide enhanced durability without sacrificing performance or increasing weight. Built with Toray’s groundbreaking stretch nylon fabrics, the Kutana Soft Shell Jacket is ideal for rugged terrain and thick vegetation where abrasion and pick resistance are non-negotiable in an outer layer. It delivers wind and weather protection across a wide range of conditions in the most punishing terrain.

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Kutana Soft Shell

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Kutana Soft Shell
Kutana Soft Shell
Kutana Soft Shell

Kutana Stretch Woven Pant

13.4 oz / 380 g

A remarkably durable and lightweight pant designed to withstand formidable terrain. Toray Primeflex Nylon fabric provides abrasion and pick resistance unmatched in its weight class, with two-way spandex-free stretch. Articulated knees and a gusseted crotch allow for a full range of unrestricted movement, while low-profile cargo pockets provide storage with minimal bulk. Ideal for early-to-mid-season hunts in rugged conditions where durability is just as crucial as performance and mobility.

Shop Pant Watch

Kutana Stretch Woven Pant

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Kutana Stretch Woven Pant
Kutana Stretch Woven Pant

Kutana 3DeFX+ Hybrid Jacket

13.6 oz / 386 g

Bridging the gap between insulation and outer layer, this jacket is designed with more durability than the average insulation piece. Its hybrid design places nylon-faced 3DeFX+ synthetic insulation in core areas for warmth and protection, and high-stretch breathable StrongFleece in heat-generating zones, particularly the back panel for excellent breathability while wearing a pack. Wear it as a lightly-insulated outer layer, or as a mid layer in colder conditions.

Shop Jacket Watch

Kutana 3DeFX+ Hybrid Jacket

Rotator 360
Kutana 3DeFX+ Hybrid Jacket
Kutana 3DeFX+ Hybrid Jacket

Kutana Storm Shell Jacket

18.3 oz / 519 g

Designed for the toughest hunts, this waterproof breathable rain jacket is built for durability at a backpack-friendly weight. Featuring a tough ripstop stretch nylon face fabric, backed with an entirely new Toray waterproof membrane and seam tape combination, the Kutana Storm Shell Jacket is the next line of innovation in protection and longevity. Designed as a full-featured jacket with all of the built-in pocketing, ventilation, and cinch options you need for a difficult hunt.

Shop Jacket Watch

Kutana Storm Shell Jacket

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Kutana Storm Shell Jacket
Kutana Storm Shell Jacket
Kutana Storm Shell Jacket

Kutana Storm Shell Pant

15.5 oz / 439 g

If you’re preparing for a tough hunt that’s wet and brush-choked, you need protection with a rain gear system that’s durable, lightweight, and dries quickly. The Kutana Storm Shell Pant features an entirely new microporous hydrophobic membrane from Toray that breathes even when activity level is minimal, and absorbs very little water for incredibly fast dry times. The durable stretch nylon 6/6 face fabric offers great tear strength for its weight, and will stay dry longer due to a new, more durable K-DWR treatment.

Shop Pant Watch

Kutana Storm Shell Pant

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Kutana Storm Shell Pant
Kutana Storm Shell Pant
Kutana Storm Shell Pant