Maker’s warranty: Limited lifetime warranty against defects in materials or workmanship; covers original owner, bought from Sea to Summit or an authorized reseller; repairs: paid repairs; spare parts sold. Sea to Summit’s terms, read Oct 25, 2026
Sea to Summit’s own description.
Building on over a decade of experience in collapsible drinkware, the 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 down to less than 2cm in height.
