Ships in 1-2 business days | Based in Perth, Australia | Est. 1991 A space-optimizing collapsible cup! Building on over a decade of experience in collapsible drinkware, the Sea to Summit Frontier Collapsible Cup has been engineered to be sleeker, more ergonomic, and lighter. Glass-reinforced nylon 66 is used for the base, rim, and center ring providing more stability and allowing you to grip the cup more easily. EU food-grade silicone rubber sidewalls let the cup shrink to less than 2cm in height. Designed to nest/stack, these cups really do fit in anywhere. Features: Collapses flat to less than 2cm thick allowing you to fit it into your pocket Made from BPA-free, food-grade silicone, with nylon rings to maintain shape and shield fingertips from heat Base, rim, and center ring made of light yet durable reinforced nylon Nests with other Frontier Dinnerwear Dishwasher safe Protected by Sea to Summit&';s lifetime guarantee _______________________________________________Specs Capacity: 400mL Dimensions: 4" x 4" x 3.5" | 10.2cm x10.2cm x 8.9cm Weight: 1.9oz | 53g Materials: 45% Glass-reinforced nylon and 55% food-grade silicone rubber Made in China