Sea to Summit is a small, privately owned global company which develops and manufactures outdoor, travel and water sport products. They provide solutions for outdoor enthusiasts looking for innovative, durable, lightweight and compact gear. Sea to Summit continues to research the best materials, production methods and ideas for new products keeping us at the forefront of bringing lighter, better made, better performing gear to enthusiasts around the world. The compact X-Cup is perfect for smaller hands. It is constructed from an unbreakable, flexible, European standard compliant, food grade silicone and is BPA free. Is it calibrated and can be also used as a measuring cup. A rigid ring within the rim keeps it sturdy and easy to drink out of but still allows the mug to be collapsed to a disk that will fit in the palm of your hand! The X-Cup is a handy addition to any camping kit and comes in a range of great colours.