The Expander sleeping bag liner is made of a super soft and stretchy knitted poly-cotton material. The Rectangular, Traveller and Double models don't have side seams and, combined with the stretch fabric, this offers an unprecedented level of comfort in a budget-priced liner. A built-in antimicrobial treatment keeps odors at bay - and it won't wash out of the liner when it's thrown in the washing machine. This is the perfect travel companion for those looking for a luxuriously comfortable sleep. Features Stretchy, wicking Jersey-knit poly-cotton fabric, knitted without side seams for extra comfort. The antimicrobial finish keeps the liner fresh and odor-free. Easy care – machine wash with no special soap needed. Avoid fabric softeners and dryer sheets. Keeps sleeping bag clean. Packs into its own storage case.
The Expander sleeping bag liner is made of a super soft and stretchy knitted poly-cotton material. The Rectangular, Traveller and Double models don't have side seams and, combined with the stretch fabric, this offers an unprecedented level of comfort in a budget-priced liner. A built-in antimicrobial treatment keeps odors at bay - and it won't wash out of the liner when it's thrown in the washing machine. This is the perfect travel companion for those looking for a luxuriously comfortable sleep. Features Stretchy, wicking Jersey-knit poly-cotton fabric, knitted without side seams for extra comfort. The antimicrobial finish keeps the liner fresh and odor-free. Easy care – machine wash with no special soap needed. Avoid fabric softeners and dryer sheets. Keeps sleeping bag clean. Packs into its own storage case.
in 3 offers
The lowest price for Sea to Summit Expander Liner Navy / Standard right now is $45.38 at Bicycle Store, compared across 3 retailers.
The all-time low was $19.99 on 2 Aug 2024 — today's price is 127% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 12 Oct 2026.
Sea to Summit Expander Liner Navy / Standard
The Expander sleeping bag liner is made of a super soft and stretchy knitted poly-cotton material. The Rectangular, Traveller and Double models don't have side seams and, combined with the stretch fabric, this offers an unprecedented level of comfort in a budget-priced liner. A built-in antimicrobial treatment keeps odors at bay - and it won't wash out of the liner when it's thrown in the washing machine. This is the perfect travel companion for those looking for a luxuriously comfortable sleep. Features Stretchy, wicking Jersey-knit poly-cotton fabric, knitted without side seams for extra comfort. The antimicrobial finish keeps the liner fresh and odor-free. Easy care – machine wash with no special soap needed. Avoid fabric softeners and dryer sheets. Keeps sleeping bag clean. Packs into its own storage case.
The Expander sleeping bag liner is made of a super soft and stretchy knitted poly-cotton material. The Rectangular, Traveller and Double models don't have side seams and, combined with the stretch fabric, this offers an unprecedented level of comfort in a budget-priced liner. A built-in antimicrobial treatment keeps odors at bay - and it won't wash out of the liner when it's thrown in the washing machine. This is the perfect travel companion for those looking for a luxuriously comfortable sleep. Features Stretchy, wicking Jersey-knit poly-cotton fabric, knitted without side seams for extra comfort. The antimicrobial finish keeps the liner fresh and odor-free. Easy care – machine wash with no special soap needed. Avoid fabric softeners and dryer sheets. Keeps sleeping bag clean. Packs into its own storage case.
Last updated at 12/10/2026 05:25:51
Sea To Summit Expander Liner Mummy With Hood - Navy - SUPER SALE
Delivery between 15–19 Oct $9.95
Sea To Summit Expander Liner Mummy With Hood - Navy - SUPER SALE
Delivery between 16–26 Oct $9.95
Sea To Summit Expander Liner MUMMY / Navy
Delivery between 14–21 Oct $35
| Weight | 310 g |
| Temperature Rating | Comfort |
| Comfort Temperature | Comfort |
| Length | 210 cm |
| Width | 80 cm |
Sea To Summit Expander Liner Mummy With Hood - Navy - SUPER SALE
Delivery between 15–19 Oct $9.95
Sea To Summit Expander Liner Mummy With Hood - Navy - SUPER SALE
Delivery between 16–26 Oct $9.95
Sea To Summit Expander Liner MUMMY / Navy
Delivery between 14–21 Oct $35
| Weight | 310 g |
| Temperature Rating | Comfort |
| Comfort Temperature | Comfort |
| Length | 210 cm |
| Width | 80 cm |
