Barter is the present and the future of international trade, especially for people who is starting in the import export business. Barter and more: Triangular operations.
The material of the sleeping bag
Down sleeping bags have high requirements on internal and external materials. The lining material usually requires more than 200T, because if the lining material index is lower than 200T, individual hairs will be worn out. Some better sleeping bags often use good nylon materials without velvet. The phenomenon of wearing out, the material is light and feels soft on skin contact;
External materials for sleeping bags: Good down is mostly made of waterproof and breathable materials, because in some extremely cold places, when you get up in the morning, the small water droplets formed by the heat in the tent will often splash on the sleeping bag, so the external materials of the sleeping bag should be It has a certain degree of water resistance to ensure the dryness of the sleeping bag. Since the down sleeping bag is wet and not easy to dry, it will lose its thermal performance, so it is necessary to use waterproof and breathable materials as its outer fabric.
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