These BLS Packs have a Cordura outer shell, a durable plastic protective shell insert, six internal color coded pockets, a lid insert, 3M reflective tape, carrying handles, a hanging loop, shoulder straps and internal straps. The Oxygen/Trauma Access Pack also includes a quick access window for starting O2 therapy and special pouches on the lid for blades, handles and trauma supplies. Additionally, these bags contain two O2 tank covers with carry handles that fit size D and Jumbo D cylinders.