If you read my other review you'll know why I ordered this one. I basically loved the quality of the Camelbak packs but didn't want one where I had to use the waist straps to keep it secure, as I'm a large chap! The M.U.L.E. does not disappoint. Well made, a pocket for everything, an easy to clean bladder and removable waist straps. I have used it twice now on MTB and it is comfortable to wear, feels secure and doesn't make your back sweat.......great!