The Sea to Summit X-Mug is constructed from a flexible, European standard compliant, food grade silicone. Double the size of the X-Cup, the X-Mug can hold plenty to drink. The rigid ring within the rim keeps it sturdy and easy to drink out of but still allows the cup to be collapsed into a flat disk that will fit almost anywhere.
• Lightweight • Durable • 100% BPA Free • Packable • Warranty – Lifetime from date of purchase
• Durable, food grade silicone • 100% BPA free • Folds flat, collapsing from 8.5cm to 1.5cm • Calibrated as a measuring cup, holding approximately 2 cups