Do everyone's sleeping bags have liners?

Generally, fleece fabric is the main material. Sleeping bags are mainly filled with down and chemical fiber cotton, and there are also single-layer polar fleece sleeping bags.

material

Feather sleeping bags have high requirements for both internal and external materials, and the lining is generally above 200T, because if the lining index is less than 200T, individual hairs will be worn out. Some good sleeping bags often use good nylon materials (such as nylon Pretex P660MA in Britain) to ensure that there will be no velvet wear. This material is light and feels soft when touching the skin.

External material of sleeping bag: Good down is mostly made of waterproof and breathable material, because in some extremely cold places, when getting up in the morning, small water droplets condensed from the hot air in the tent often splash on the sleeping bag, so the external material of sleeping bag should be waterproof to a certain extent to ensure the drying of the sleeping bag. Because the down sleeping bag is not easy to dry once it is wet, it will lose its thermal insulation performance, so it is necessary to use waterproof and breathable materials as its external fabric.

Artificial vacuum cotton

Features are moisture-proof, lightweight! Therefore, in a humid environment, it is best to choose an artificial vacuum cotton sleeping bag. Avoid wetting the sleeping bag, or sleep will be seriously affected.

Feather material

Down sleeping bags are light and warm, but they must be kept dry. Once it gets wet, it not only loses its heat insulation effect, but also is difficult to dry.

Camping bag

It can replace some functions of tents to keep you dry, but in the long run, it is not as practical as tents, because tents are also places for cooking and daily activities. Put your sleeping bag in a small bag, put it in a compression bag, and reduce the volume to a small size. In order to keep the sleeping bag clean, you can put an epithelial pad or poncho under it.

Internal and external materials

Ordinary cotton sleeping bags are made of polyester or nylon, and polyester nylon cloth is different in density and texture, so I won't go into details here. Down sleeping bags have high requirements for both internal and external materials, but only nylon material with a density of more than 230T can ensure cashmere prevention. The density of many nylon fabrics in China is not enough to prevent cashmere, so it is unscientific for manufacturers to use coatings to prevent cashmere. Because the inner and outer materials of down sleeping bag need to have good air permeability, otherwise the moisture emitted will gather in the sleeping bag, which greatly reduces the warmth of down. High-woven pure cotton or polyester cotton can also prevent cashmere, but it is heavier and has poor compressibility, and is generally not used for high-grade sleeping bags.