FeaturesULTRA PORTABLE - Collapses down to a slim 1.5 inch profile to easly fit in your pocket, a pack, a carry on, or nearly anywhere elseLEAKPROOF - Watertight seals throughout to prevent unwanted spillsNON TOXIC - Made of food-grade silicone and BPA-free plasticEASY CLEAN - Dishwasher safe and wide-mouth opening for hand washingSHAPE SHIFTING - Fits in most vehicle cup holders when expanded and stashes away when collapsed