We all want to do the right thing and drink from a reusable coffee cup. But most of us either forget to bring them along or don’t want the hassle of carrying a clunky mug or reusable bottle.

Stojo is a collapsible drinking cup made mostly of silicone. It folds down fast into a two-inch-thick disc that fits in your jacket pocket or bag. A hard plastic heat sleeve adds stability while insulating your hand. And the plastic lid is spill-proof, even when the cup is compacted.

Co-Founders Jurrien Swarts, Ben Melinger, and Alex Abrams were talking (over coffee, fittingly enough) about how much waste to-go cups generate. But bulky travel mugs didn’t work well with their busy, urban lives. They created a reusable travel cup that’s easy to carry and store, so you’ll be inspired to cut down on paper cups. Every time you use it, that’s one less paper cup that gets thrown away.