ULTRA Merino 145 Zip-Off Bottom

Featuring Nuyarn technology, the ULTRA Merino 145 Zip-Off Bottom is a versatile, lightweight base layer pant with an above the boot design and full length leg zippers which allow for easy on and off without removing your boots.

• 6.7 oz
• 145 g/m2 fabric weight
• 90/10 Wool Polyester Nylon blend
• Base-layer
• Full length leg zippers with Hook and loop tab closures
• Naturally odor resistant
• Rated UPF 50+ (Excellent Protection)

More Size XXL Arriving Fall 2020

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SKU # 10004
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  • lifetime warranty on all our gear

Product Overview

Developed in New Zealand, Nuyarn technology has revolutionized the Merino wool market. Taking the twist out of the yarn has produced a fabric with higher stretch and recovery, better moisture management, and greater warmth. It is stronger than the average Merino wool on the market, yet boasts the same natural odor resistance and comfort.

KUIU’s ULTRA Merino 145 is a lightweight, incredibly comfortable, and durable blend of wool and nylon providing a next to skin or layering option for the highly active hunter. Itch-free, moisture wicking, and naturally odor resistant, the ultra fine 17.5 micron Merino wool takes the edge off in cool conditions, while the full length leg zippers and above the boot design allow you to easily add or shed layers in changing weather conditions without removing your boots and outer layer pant.

• 26in (66cm) inseam
• Crotch gusset for added comfort and reduced chaffing
• Functional fly
• YKK Zippers
• Spandex-free stretch
• Thermo-regulating
• Moisture wicking and quick drying
• Highly breathable
• Highly resilient
• Flat lock seams
• Anatomical shaping for fit and comfort


Nuyarn® by The Merino Wool Company

Changing the Very Fabric of Yarn

KUIU’s quest for the finest ingredients led us to New Zealand, where they take their wool remarkably seriously. Nuyarn is not a new fabric, it’s a new way of making fabric. 

Classic yarns twist fibers together for strength, which leaves ends poking out. Nuyarn takes the twist out, and instead lays fibers along the same orientation, so fabrics feel less prickly and more comfortable yet become stronger. Nuyarn lower-density fabrics let lighter-weight garments outperform heavier traditional ring spun garments.

Featured in our ULTRA Merino Base Layers

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