Patagonia Micro D Half-Zip Fleece Pullover in Birch White. The toasty, multifunctional Micro D® 1/2-Zip Fleece Pullover has a relaxed fit and is built from 100% recycled polyester microdenier fleece with an anti-pilling finish. Use the marsupial pocket to warm up your hands or stash a beanie. Made in a Fair Trade Certified™ factory.