Patagonia's softest, lightest fleece, the Boys's Micro D-Luxe 1/4-Zip is efficient as a coyote and nearly as tough. Fast-wicking, 4.7-oz polyester microdenier fabric (85% recycled) makes it earth-friendly and exceptionally breathable; a deep quarter-front zip lets you open up to vent Additional heat. Equally nice worn alone or as a layering piece under a shell. Recyclable through the Common Threads Recycling Program.