3D-5D is an ultra-thin invisible stocking, which seems to be worn on the body. The even skin color of the legs is more mysterious with the subtle changes in the color of the stockings.

8D- 15D are ultra-thin stockings, suitable for temperatures above 25 degrees.

20D-40D are thin stockings, suitable for 18 ~ 25 degrees.

50D-80D are micro-permeable stockings, suitable for 15 ~ 22 degrees.

100D-680D is waterproof stockings, suitable for 10 ~ 20 degrees.

800D-2800D is a medium-thick silk stocking, suitable for temperatures ranging from 8 degrees to 15 degrees.

3000D-5000D is thick pantyhose, suitable for temperature of 5 ~ 12 degrees.

Extra-thick cold-proof pantyhose over 5800D are suitable for 3 ~ 10 degrees.

Everyone has different cold tolerance, and the temperature difference between north and south in the morning and evening is also different. The above data are for reference only.