The women's long-sleeve technical base layer Artilect Boulder 125 Quarter Zip is an exceptionally versatile next-to-skin layer (A/SYS-1), engineered for anyone seeking superior thermoregulation and natural comfort during high-output activities in cooler conditions. This technical garment combines the natural benefits of merino wool with cutting-edge knitting technology, ensuring the perfect balance of lightweight performance, reliable thermal insulation, and uncompromised moisture management.

At the core of the shirt is the patented Nuyarn® fabric with a density of 125 g/m², composed of 85% merino wool and 15% nylon. It utilizes premium 18-micron Australian non-mulesed merino wool certified by bluesign®. Compared to conventional merino wool, Nuyarn® dries up to 5 times faster, offers 35% more stretch, and is up to 50% more durable while naturally resisting the buildup of unpleasant odors.

Weighing a mere 125 g, the shirt is cut in an ergonomic women's Slim Fit that contours closely to the body, enabling unrestricted mobility and easy layering under a windbreaker or down jacket. Optimal body temperature regulation is provided by a premium 1/4 YKK zipper with a soft chin guard, complemented by strategic eyelet mesh panels and underarm gussets. Flatlock seams eliminate skin chafing, integrated thumb holes at the cuffs ensure a secure sleeve fit, and a practical hang loop facilitates quick drying.

Thanks to its remarkable lightness and technical performance, the Artilect Boulder 125 is the ideal choice for ski touring, mountaineering, winter running, climbing, and demanding trekking adventures where you require dependable cold-weather protection without unnecessary weight.