The ULTRA Merino 120 LT answers KUIU’s never-ending challenge of reducing weight, while improving durability. KUIU partnered with Nuyarn® to engineer merino wool sourced from New Zealand that was lighter than the 125 g/m² predecessor, yet stronger. Merino wool as a natural fiber excels at thermoregulation and odor resistance, which are critical for long-duration hunts. Without sacrificing performance or comfort of the natural softness from the 17.5-micron fiber, the new 120 g/m² fabric uses a thicker nylon yarn core through Nuyarn technology, creating higher dimensional stability, improved regain, and added durability. The result is the lightest and toughest in the industry. Size large In great shape