This Victorinox sheath measures 4.5" long and is made from heavy duty nylon with a belt loop strap. It was designed to fit the Alpineer, Adventurer, Centurion, Equestrian, Forester, Helmsman, Hunter, Nomad, One-Hand Trailmaster, Parachutist, Picnicker, Rucksack and the Trailmaster.