Expandable Travel Cup in Silicone - Your Ultimate Companion Easily switch between a compact 200ml cup and a spacious 300ml cup, which adapts to your needs along the way. Ideal for mountain hikes or  boat trips. This cup is made for your active lifestyle. Your drink will keep its temperature longer. Made from environmentally friendly BPA-free silicone. Elevate your travel experience with this innovative, space-saving cup.