Patagonia Micro D 1/4 Zip Fleece for Men Wear the Patagonia Micro D 1/4 Zip Fleece for Men over your favourite flannel and layered under a down vest for a warm fall outfit fit to fend off any chill. It's hard to find time to throw your Micro D in the wash when it's in constant use Uber soft and lightweight, this pullover has a fast-wicking, 4.7-oz. polyester micro denier fabric that's comfortable, supple and exceptionally breathable. It is made from 85% recycled fleece, it's the perfect weight to wear alone on a shady crag or layer under a shell when the storm clouds roll overhead. It features a deep quarter-front zip that lets you vent extra heat. The Patagonia Micro D 1/4 Zip Fleece for Men works as either insulation or outer layer.