It is Just 3.3 inches after folded which is very save the space, The Storho bottle has a tight cap,so you never have to worry about leaking,leaking,or breaking.The detachable parts are the cap and body.Made of platinum food grade silicone and No.5 recyclable plastic,which means no bpa,bps,phthalates,lead,or glue.A collapsible,leak proof coffee mug,they are the ultimate eco friendly product that makes sustainable living easy.