Note: the market is full of a small amount of inferior double-layer yarn, so you must be careful when buying it.

For example, the number of yarns should not be less than 40 and the density should be greater than or equal to 240.

It must be all cotton, note that it is 100% cotton, and it meets Class A safety standards, and does not contain formaldehyde and fluorescent agent.

But the double-layer yarn has a disadvantage, that is, it is easy to wrinkle, especially easy to wrinkle. However, this is also in line with the plant properties of cotton.