Flasks with screw cap
prices on 19 modelsScrew cap
— cork, opened and closed only by twisting from the neck and, accordingly, winding back. These plugs are considered more reliable than valves (see related paragraph) and are well suited for long-term storage of fluid. At the same time, it is not very convenient to unscrew and twist the container for a couple of sips on the go, and without a loop for the lid (see the relevant paragraph), there is a high risk of losing the cork.