1. material: the materials of slippers on the market are sheepskin, cowhide, synthetic leather, plastic, rubber, gauze, etc. Among them, leather slippers absorb sweat, keep warm and comfortable, and are more suitable for wearing in hot weather such as summer. The quality of synthetic leather will be a little worse than leather slippers, but it will be a little cheaper. Plastic slippers are light and cheap, but they don't absorb sweat and have poor air permeability. The specific choice of material should be based on the needs of use.
2. Is there any smell: When you check the quality of a slipper, you can smell it with your nose. If you smell the pungent smell of slippers, it is probably caused by chemicals, and this kind of slippers can't be bought. Good quality slippers often have no pungent smell or pungent smell.
3. Size: Don't buy shoes that are too tight, which will affect comfort. If it is pointed slippers, there should be a margin of 1 cm between the big toe and the toe; If you buy thick-soled lace-up slippers, you should choose a slightly larger one, otherwise you will feel bound if you wear them too tightly.