Sea to Summit Frontier UL Collapsible Cup - Orange

The cup is made from BPA-free, food-grade silicone with nylon rings.

It is recommended to hand wash the cup for best results. However, it can be put in the dishwasher on the top rack.

Push down on the rim while gently squeezing the sides until it collapses flat.

While the cup is heat-resistant, it's not designed for direct boiling. Use it for drinking after the water has been heated in a separate container.

Rinse with water and use mild soap if necessary. Avoid abrasive cleaners. Air dry completely before storing.

The cup has a capacity of 400ml.

Yes, the rim has a rigid nylon ring to maintain shape and prevent scalding.

It collapses flat to 17mm.

Ensure the rim and base are properly aligned and that there are no punctures in the silicone. Check the base and rim rings.

Make sure the nylon rings are properly engaged and that the cup is fully expanded. Check for any damage to the sides or base.

Wash thoroughly with hot, soapy water. Consider using baking soda to eliminate strong odors. Air dry completely.