Sea to Summit Expander Liner

The Sea to Summit Expander Liner offers soft, stretchy, and breathable comfort with its premium poly-cotton knit, perfect for enhancing your sleeping bag or as a lightweight travel sheet. Designed without side seams and with flexible fabric, it ensures unmatched freedom of movement throughout the night.

Ideal for budget-conscious travelers, this liner includes a permanent antimicrobial treatment that controls odors without washing out, making it machine-washable and travel-ready. Whether you're on a camping trip or staying in hostels, this liner provides a clean, cozy sleep wherever you go.