REI

Add comfort to your mummy bag with this soft, brushed 100% cotton flannel liner--it's breathable, warm and durable.
- Keeps your bag clean, saving it from the wear and tear inflicted by washing machines
- Adds approximately 5 degrees of warmth to your sleeping bag
- Tapers from a 35" width at the shoulders to 22" width at the foot
- Comes with stuff sack for convenient packing
Paragon Sports

Fabric: Flannel
Features:
- COCOON® Cotton/Flannel TravelSheets are the perfect choice for colder climate zones and chilly evenings.
- Get a good nightÂ’s sleep with the 12 degrees of added warmth and the cozy softness of brushed cotton.