The Women’s Furnace Quarter Zip now features an updated fit that’s true to size and has more room in the bust and arms. Use our new women’s size chart if you’re unsure of where you fall in our new size scale. Whether you drew a late-season elk hunt or are down to the closing bell in the treestand, First Lite's Merino-X Furnace series is the perfect tool for punching tags late in the season. Built with 350g EXP Merino-X weight fabric, the women's Furnace Quarter Zip is constructed for the coldest temperatures. Featuring a high collar, quarter zip, flatlock seams, and an articulated fit, it's ideal for layering over our other lightweight, next-to-skin styles. Our Furnace Merino-X fabric incorporates a brushed fleece backside to our high-loft, interlock knits to provide super-charged insulation without added weight. Adding this to the silent, odor-free benefits of merino wool, the Furnace merino is the hands-down choice for female hunters on cold-weather hunts. Kate is 5'6" and 150lbs, wearing a size Small.