The Sisi (or Sili) Cup is a silicone cup that would be a reusable replacement for a paper or Styrofoam cup. It is a consumer product that would have the same feel and some of the insulation of a Styrofoam cup, but more flexible and foldable (or flatten-able) resembling a paper cup. Most reusable cups cannot be folded and can be difficult to carry, remember or wash, setting this cup ahead. These cups would be like most silicone bake ware which is microwaveable, dishwasher safe and can contain boiling water. Silicone bake ware is also easy to manufacture. It is silicon and oxygen with fillers.
There possibly needs to be more information on the safety of manufacture and usage of silicone bake ware. As silicone, the Sisi cups would not break easily and can come in a multitude of colours, perhaps even two colours or more. A lid could be created with some trouble-shooting once a satisfactory cup is decided upon. These cups would easily be affordable compared to most other reusable and disposable cups.