ULTRA Merino 125 SS Crew-T

Featuring Nuyarn technology, the ULTRA Merino 125 SS Crew-T is the lightest and fastest drying of all our Merino base layers. It is the ideal warm weather next to skin layer for the active hunter.

• 5oz
• 125g/m² fabric weight
• 85/15 Wool Nylon blend
• Ultralight next to skin base layer
• Naturally odor resistant
• Rated UPF 40+ (Excellent Protection)

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SKU # 20016
  • lifetime warranty on all our gear

Product Overview

Breathable comfort for the warmest-weather hunts

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 125 is the perfect blend of wool and nylon providing a comfortable and durable 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 eyelet knit side panels provide maximum breathability. Whether cooling and wicking moisture when it’s hot or providing insulation when it’s cold, the 125 is an ideal choice for hunters needing an all-around solution.


  • 17.5 micron Certified New Zealand Merino Wool
  • Spandex-free stretch
  • Thermo-regulating
  • Moisture wicking and quick drying
  • Highly breathable
  • Highly resilient
  • Flat lock seams
  • Anatomical shaping for fit and comfort
  • Side panels and raglan sleeves for added comfort and reduced chaffing
  • Eyelet knit side panels for maximized breathability


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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