The camelbak ultra handheld bottle 500ml the ultratrade handheld chill is so light and comfortable you39ll almost forget you39re carrying it it features a 500ml insulated soft flask that keeps your water cold twice as long as a normal bottle without the bulk the collapsible flask molds to your hand and the stretchy elastic straps keep is secure even when your grip is relaxed there is also a zipped pocket for your phone card or keys camelbak ultra handheld bottle 500ml features