The Expander sleeping bag liner is made of a super soft and stretchy knitted poly-cotton material. The Rectangular, Traveller and Double models do not have side seams, and combined with the stretch fabric, this offers an unprecedented level of comfot in a budget-priced liner. A built-in antimicrobial treatment keeps odors at bay and won't wash out of the liner when you throw it in the washing machine. This is the perfect travel companion for those looking for a luxuriously comfortable sleep.

Our blog post "" has some helpful tips on picking the perfect liner

DOES THE EXPANDER TRAVEL LINER…?

• Have enough space in the Traveller Pillow Slip for an Aeros Pillow?The built-in pillow slip in the Traveller liner is designed to meet hostel association specifications. They measure 15” / 38cm deep and 36” / 92cm wide. Aeros Pillows in sizes Regular and Large will fit into the pillow slip, but a Deluxe Pillow is a little too large.
• Work for backpacking as a liner?Probably not. The Expander is heavier and bulkier than most backpackers would want – a Reactor/Adaptor or possibly a Silk liner would be more appropriate.
• Need special care when being washed?No! The Expander can be washed in a washing machine with normal supermarket laundry ‘soap’; just avoid fabric softeners as they will reduce the wicking performance of the fabric. You can dry an Expander in a dryer, use cool or low heat.