Sea to Summit Expander Liner Mummy Navy

In stock

Old price 34.95 €
You save 9 %
Price includes VAT.


The Expander liner is made from a premium stretch knit polycotton, making it super stretchy and even warmer than a standard cotton weave liner. The stretch properties allow the Expander to move with you as you sleep, vastly increasing comfort and minimising tangles. The anti-microbial treatment keeps bacteria at bay as well as prolonging the life of your liner and sleeping bag. The anti-microbial treatment won’t wash out of the liner, and does not use nano-sized particles. The treatment is approved for use by the EPA (USA) and is used in many hospitals.

Premium stretch knit fabric that can expand twice its width

Luxuriously comfortable

Extends life of sleeping bags by keeping them clean

Anti-microbial protection, keeps your liner fresh, hygienic and od.



Mummy with Hood & Box foot: 210 x 80cm.

Cool Weather


Mummy with Hood & Box foot: 310g

Easy care, machine washable


The Sea to Summit anti-microbial treatment prevents mould or fungal growth inside the air spruny mattresses.

While we do have two superb pump options, the Air stream or Jet stream, the anti-microbial treatment means you can go ultra-light and inflate with your breath.


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