Sea to Summit does not apply flame retardants or water-repellent finishes to any of our liners.
The only treatment you’ll find is Insect Shield®, and it’s available on two models in the US:
- Breeze Mummy Liner
- Traveller Liner (Rectangular with Pillow Sleeve)
You can learn more about this treatment here: Insect Shield Technology
All Sea to Summit liners, including the Insect Shield-treated versions, are 100% free from PFAS (“forever chemicals”).
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