Sea to Summit Adaptor COOLMAX Liner

The fabric is treated with permethrin, an odorless, invisible insect repellent that is bonded to the fibers. It provides effective protection against mosquitoes, ticks, ants, flies, and midges for the life of the product.

Yes. The CoolMax polyester fabric is designed to wick moisture away from your body and dry quickly, which helps regulate your temperature and prevents that sticky, clammy feeling in humid environments.

You can absolutely use it on its own. It serves as a lightweight, hygienic sleep sheet for hostels, hotels, or warm-weather camping where a full sleeping bag is too heavy or hot.

It is very comfortable. The polyester-knit construction is soft, stretchy, and feels similar to a high-quality athletic t-shirt, making it much more pleasant than standard cotton liners.

The liner is machine washable. You can wash it as you would any other synthetic bedding, and the Insect Shield treatment is designed to remain effective through regular laundering.

The mummy shape features a drawcord hood to cinch tight around your head for better heat retention inside a mummy-style sleeping bag. The traveller version includes a built-in pillow sleeve, which is ideal for keeping your pillow in place when sleeping in hostels or hotels.