Say goodbye to your grandpas leaky， multi-ring， telescoping travel cup. Humangear started with FDA food-grade silicone to create a one-piece cup that is 100% watertight. GoCup expands with a quick pull and collapses to an ultra-compact puck all with a simple press. The lid keeps the cup clean during travel and features a handy pill holder. The lid has air vent holes so that any residual fluid dries out and prevents bacterial growth. PC-free， phthalate-free， and BPA-free. GoCup is top rack only dishwasher safe.