Liner Camping, Hiking, & Climbing Gear from $30 to $59, from Amazon.com

Sea to Summit's "Reactor&#­034; is made from the lightest weight Thermolite(r) that DuPont has yet approved. Thermolite(r) is a hollow core fiber that provides extraordinary warmth for its weight and rem... more

Sea to Summit's "Reactor&#­034; is made from the lightest weight Thermolite(r) that DuPont has yet approved. Thermolite(r) is a hollow core fiber that provides extraordinary warmth for its weight and remains extremely breathable. Adds up to 15 degrees of warmth to a sleeping bag or, used alone, is the ideal warm weather bag. less

Slumberjack Micro Fleece Rectangle Liner: The Slumberjack Micro Fleece Rectangle Liner is a double brushed, 100% polyester micro fleece fabric liner with anti-pilling properties so it will last. Ou... more

Slumberjack Micro Fleece Rectangle Liner: The Slumberjack Micro Fleece Rectangle Liner is a double brushed, 100% polyester micro fleece fabric liner with anti-pilling properties so it will last. Outfitted with a hip length, two way zipper and a Durasoft snap closure, the Micro Fleece Mummy Liner will keep you warm and cozy in cold climates while protecting your sleeping bag from wear and tear. Includes a matching micro fleece stuff sack. less

Cocoon Silk Travel Sheets and Sleeping Bag Liners are so comfortable that many adventure travelers use them on all their travels to protect them from the harsh chemicals used in hotel laundry. The... more

Cocoon Silk Travel Sheets and Sleeping Bag Liners are so comfortable that many adventure travelers use them on all their travels to protect them from the harsh chemicals used in hotel laundry. The Silk Travel Sheet is an excellent ultralight sleeping bag or a lightweight indoor sleeping bag. Who says you can't sleep in silk sheets while traveling? With Cocoon sleep sacks you can enjoy silk travel sheets anywhere. Silk adjusts naturally to changing temperatures, making it one of the most vers... less

The Cocoon Cotton Mummy Liner is a quality and versatile mummy sleeping bag liner. The breathablilty of cotton is soothing and warms while also keeping you cool in warmer conditions. Slip into a so... more

The Cocoon Cotton Mummy Liner is a quality and versatile mummy sleeping bag liner. The breathablilty of cotton is soothing and warms while also keeping you cool in warmer conditions. Slip into a soft cotton mummy slepign bag liner from Cocoon and rest up for the next day's continued adventures. Easy to wash and care for the cotton mummy liner also adds insulation, and extends the life of your sleeping bag. In addition, Mummy Sleeping Bag Liners and Sleep Sacks can be used alone as ultralight ... less

The Cocoon TravelSheet is a rectangular sleeping bag liner which can be used as an ultralight sleeping bag keeping you cool in warm weather, or simply a sleep sack for traveling. It is essential an... more

The Cocoon TravelSheet is a rectangular sleeping bag liner which can be used as an ultralight sleeping bag keeping you cool in warm weather, or simply a sleep sack for traveling. It is essential and wonderfully useful when staying in hostels and adventure hotels. When you seek comfortable rest when in the tropics this breathable soft cotton sleep sack is all you'll need. The lightweight Travel Sheets extend sleeping bag life in addition to providing additional warmth as a sleeping bag liner. ... less

The Cocoon Cotton Mummy Liner is a quality and versatile mummy sleeping bag liner. The breathablilty of cotton is soothing and warms while also keeping you cool in warmer conditions. Slip into a so... more

The Cocoon Cotton Mummy Liner is a quality and versatile mummy sleeping bag liner. The breathablilty of cotton is soothing and warms while also keeping you cool in warmer conditions. Slip into a soft cotton mummy slepign bag liner from Cocoon and rest up for the next day's continued adventures. Easy to wash and care for the cotton mummy liner also adds insulation, and extends the life of your sleeping bag. In addition, Mummy Sleeping Bag Liners and Sleep Sacks can be used alone as ultralight ... less