Designed for performance, the TNF TKA Glacier women's quarter-zip sweater features a lightweight Thermal Kinetic Advancement (TKA) microfleece with a plush finish providing enhanced warmth. This fabric is both durable and resistant to pilling. Soft, comfortable, easy to pack, this thermal layer will help you feel and look good on the push to the summit. This garment can be worn alone or as a mid layer in a layering system providing comfort and warmth enabling you to regulate your body temperature by wicking moisture away during your outdoor activities.