Stanley 1913 Protour Flip Straw Tumbler - Pink - 890ml

Yes, the ProTour lid is designed to be fully leakproof when the flip straw is snapped shut, providing spill-free security.

The double-wall vacuum insulation keeps drinks ice-cold for up to 9 hours and iced for up to 40 hours.

While the insulation is excellent for cold, this tumbler is primarily designed for cold beverages. Hot liquids may increase internal pressure and pose a burn risk if the straw mechanism is used.

The tumbler features a durable powder coat finish, which is designed to resist chipping and scratching. However, like any coated item, care should be taken to avoid excessive impact.

It is crafted from 18/8 recycled certified food-grade stainless steel.

The lid and straw should be disassembled and washed with warm, soapy water. A straw brush can be helpful for thorough cleaning.

The tumbler measures approximately H: 245mm x W: 135mm.

Ensure the lid is tightly sealed and the flip straw is fully closed. Verify the double-wall vacuum insulation has not been compromised (e.g., dents).

Disassemble the lid and clean the straw thoroughly, checking for any obstructions. Ensure the straw is properly seated in the lid.

Check that the lid is screwed on straight and securely. Inspect the gasket or seal on the lid for any damage or debris that might be preventing a proper seal.

Some minor condensation may occur in very humid environments, but significant condensation indicates a potential issue with the vacuum insulation.