The Men's Pumori Wind Fleece Jacket is The North Face's basic high performance fleece. Not a lot of frills, just basic lightweight warmth. And it just got a lot better The North Face upped the ante a bit with windproof fabric to add weather protection to an already warm midweight fleece jacket. The Pumori Wind Fleece's main body fabric is Polartec Wind Pro windproof breathable polyester fleece. This completely windproof fabric breathes well to allow sweat vapor to leave so you don't get a nasty, clammy feel. The north Face designed the Pumori to zip into its compatible shell jackets. The Pumori also has two zippered hand pockets and a hem cinch cord to let you seal out drafts.