The Osprey MapWrap Stow-on-the-Go? Map Carrier provides a safe and secure place to carry and view your topographical maps. It attaches to any pack via a simple Velcro? fastener closure strap.Safe and secure way to carry and view your topo maps. Rolls up and stows your map when not in use. Attaches to pack with Velcro? fastener closure strap. Size: 12.5"x4"x.5 "rolled, 12.5"x10.5"unrolled. Wt. 3 oz.