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A stretchy, unrestrictive polycotton liner that lets you sleep easily all night long.

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Product code: 15910223 / 331339

Made using premium stretch knit polycotton, the Sea To Summit Stretch Knit Expander Liner is super-stretchy, and warmer than a standard cotton weave liner.

It moves with you as you sleep, minimising tangles to increase your comfort. The anti-microbial treatment keeps bacteria at bay, prolonging the life of your liner and sleeping bag.

  • Anti-microbial treatment EPA (USA) approved
  • Stretch knit fabric can expand to twice its width
  • Luxuriously comfortable
  • Easy care, machine washable

Length/Width: 185 x 92cm
Weight: 310g

Sea to Summit's anti-microbial treatment prevents mould or fungal growth inside. While you can always use a pump, the anti-microbial treatment means you can go ultra-light and inflate with your breath.

APILFOAMRNB 9404300000#
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Sea To Summit

This product qualifies for the following delivery methods

Standard UK Delivery (3 - 5 Days) (£3.95)

FREE on orders over £70.00


A tracking link will be provided once your order is despatched.

Premium Express Delivery (£6.95)


A tracking link will be provided once your order is despatched.

Bike Delivery (Up to 7 Days) (FREE)


This applies to all bikes, and these orders are upgraded to a specialist courier service.

Free Standard In Store (FREE)


Collect In Store (FREE)


Delivery times and days vary for each store, but we will contact you when your order is ready to collect. Please do not contact our Customer Care team for updates until after the estimated delivery time in your order confirmation email.

Premium Next Day (£6.95)


Next day cannot be offered in the following areas, and will be attempted within 48 hours: BT (all Northern Ireland), GY, IM, JE, KW11-17, HS, PH32-35, ZE.

International delivery

From £4.99 to over 200 countries worldwide. Some restrictions apply.


Returning orders to us is easy. Whatever your reason, we offer a refund or exchange within 28 days of delivery or collection.

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