The Booze Belly holds 750 ML of your favorite drink. Some would say the Booze Belly is like the Floppy Flask 2.0. The one size fits all strap adjusts to fit even the fattest of fat-asses. The 10" hose straps to the bladder to allow you to fill up your cup without having to remove the flask. Similar to the Floppy Flask but with improved features.