Statpacks Tidal Volume Oxygen Back PackStatpacks Tidal Volume Packs provide an easy way to carry oxygen. Made with foam lined materials for durability and padded protection, the Statpacks can hold a regular or Jumbo D sized oxygen cylinder and breathing equipment. This medical pack features an outside accessible urethane window, secure Velcro buckle attachments, padded shoulder straps, loading handles, reflective taping, tie down loops, an O2 wrench lanyard, and an LED light attachment