Premium Stretch Knit Expander Liner - Sleeping Bag Liners - Sea To Summit UK

Premium Stretch Knit Expander Liner

This stretchy poly-cotton liner lets you sleep easily and avoid tangles as you turn in the night.

From £28.00

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Standard Rectangular: 185 x 92cm, Mummy with Hood & Box foot: 210 x 92cm, Traveller with pillow slip: 225 x 92 cm
Cool Weather
Standard Rectangular: 310g, Mummy with Hood & Box foot: 310g, Traveller with pillow slip: 380g
Selling Price
From £28.00

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 odour free
  • Easy care, machine washable


Lifetime Guarantee

Silk Stretch Liner

The ultimate in liner comfort with ripstop silk and stretch panels.

From £80.00

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Thermolite Reactor Compact Plus

Increase your sleeping bag performance with dual weight Thermolite® fabric.


Thermolite Reactor Extreme

Increase the warmth of your sleeping bag and the get a better nights sleep with this light weight liner.


Thermolite® Reactor

Increase the warmth of your sleeping bag and your sleeping comfort.