Two superior, ultralight pullovers in one. Windproof Pertex® ripstop nylon shell and lining. Reverses from dark, low-profile color to bright, high-visibility color. PrimaLoft® Gold insulation is highly compressible, and jacket packs down into interior chest pocket for easy transport. Designed as the "action side," the bright face has a single chest pocket but no hand pockets because these would be inaccessible when wearing a pack with hip belt. Reducing the pockets on this side also helps keep overall weight to a minimum and ensures exceptional, low-bulk packability.