Icebreaker W 200 OASIS LS HALF ZIP Zipper Sweatshirt

Designed for active women who hike, enjoy snow sports, or ski on a daily basis, the Icebreaker W 200 OASIS LS HALF ZIP is a long-sleeved zip-up top made from 100% merino wool, designed for layering year-round. Its slim-fit cut, which is snug and form-fitting, allows it to be worn under other layers without adding unnecessary bulk. The half-zip allows for instant ventilation adjustment depending on the intensity of your activity.

The Icebreaker W 200 OASIS LS HALF ZIP: natural thermoregulation and everyday comfort

The 18.9-micron merino wool ensures a soft feel against the skin without any itchiness, even when worn directly against the skin. With a weight of 200 g/m², this “Lightweight” thickness offers a balance between lightness and mild insulation, suitable for cool temperatures or active pursuits in winter conditions. The fiber naturally regulates body heat and wicks away moisture, minimizing comfort fluctuations between periods of exertion and rest. Its natural resistance to odors means you can wear it for multiple outings without it becoming an issue.

A design focused on mobility and layering

Gussets under the arms allow for unrestricted movement without constricting the silhouette, while flatlock seams and offset shoulder seams reduce friction points under a backpack or midlayer. The extended back hem, known as a droptail, provides better coverage on the back when climbing or bending over—a detail appreciated on hiking trips or at the ski resort.

A natural fabric with durable properties

The wool used comes from sheep farmers in New Zealand and is certified mulesing-free. Merino fiber is annually renewable, recyclable, and biodegradable under certain conditions, and the top contains no plastic microfibers or petrochemical synthetics. Care instructions: machine wash cold or lukewarm on a delicate cycle; do not use fabric softener or tumble dry.