I be not even sure where to start ... well , its not a back pack . its a carry case with handle and a shoulder strap . the strap be uncomfortable , skinny , and way too long for even a large human male . the damn thing do not fit my detector without break it down . after break it down the battery pack and headphone do not fit in the pocket . I almost lose my battery pack and control unit on the trail because they fall out of the way too small unable to zip pouch . my fishing pole may fit , if I keep it . at this point im so frustrated I want nothing to do with garrett , optics planet , or Amazon . do not waste you money .