The Ibex Pez Full Zip Sweater for Men offers warmth without the bulk creating a perfect midlayer for the cold days of winter. The Ibex Pez fabric takes pure New Zealand Merino and mills it, using moisture heat and mechanical compression. The milling process shrinks and felts the fabric creating a soft and lofty mid-layer weight that retains all the benefits of wool. The final result is a fabric that withstands pilling and laundering, is known for it's warmth and has added durability.