For travellers, sleeping bag is one of the important components that should be equipped during their travel. It can be found in REI. It provides various types of it for the travellers because sleeping in it can bring the joys of the traveling itself. It can help the travellers to feel warm in the freezing outdoor temperature, and its liner with a mummy shape can prevent the bag from the dirt and body oil. It also makes the bag warmer, so that the travellers will feel more comfort while they are sleeping. Remember to get the sleeping bag and the liner in REI and equip them during your outdoor travelling.