Jaeseok Han's Legcap is an interesting concept. Until stumbling upon this design, I didn't realize that there was a better solution to flat drinks (namely soda) other than an extremely tight lid that is almost impossible to reopen.
Instead, Jaeseok Han's Legcap utilizes the contents itself as a sealant, which keeps the drink fresher longer. This is accomplished by simply flipping the bottle over so that is rests of the three knobby legs seen in the gallery above.
Jaeseok Han's Legcap Keeps Drinks Fresh
By: Meghan Young - Published: Apr 27, 2010 • References: yankodesign