The Scotty 4000-BRAVO Backpack is designed to be a simple, portable reservoir for water and/or foam concentrate (Class A or class B). It provides the wearer with a safe and comfortable way to carry liquids used during fire operations. The backpack system consists of an outer shell with a removable inner bladder. The outer shell is made in a high-visibility yellow, ballistic nylon fabric and is extremely durable and UV resistant. The BRAVO comes with an ultra-comfortable shoulder harness system. It uses high strength nylon webbing for the fully adjustable shoulder, sternum and waist straps. The high-visibility yellow color allows the Scotty Backpack to stand out through smoke and foliage. Each backpack has a 4" wide filled port with lid and a standard " garden hose thread for an outlet.