Flagship Rec Grid 1/2 Zip Fleece Jacket. The Flagship Recycled Grid 1/2 Zip is a technical midweight polar fleece layer made with 100% recycled Polartec polyester. This grid fleece fabric is super breathable and packable, plus offers an outstanding warmth-to-weight ratio. Layer it over a tech tee as a cozy mid-layer, or wear it as an outer layer on sunny, spring shred days. It features a neck zip for temperature regulation and a zippered chest pocket.