The compressibility of A400 is better than A200, and A400 is slightly better than Cw-X stable series. These two kinds of marathons are enough. They are both good compression pants. This refers to the standard exposure value, which is called ISO value. It means that under the standard light intensity, the exposure time is 200 degrees, the exposure time is 1/200 seconds, and the film speed is 1/400 seconds at 400 degrees, which is better in the dark, but not as good as the color-forming film at 200 degrees.

A.

A400, the most famous skin product, was launched on 20 10. It is a high-end model specially designed for sports enthusiasts, suitable for people who exercise 10 hours or more every week. It adopts the so-called "dynamic gradient compression" technology: because during exercise, with the acceleration of blood circulation, the shape of muscles changes, and the required pressure level also changes. A400 series claims to extract 400 precise compression points through the dynamic pressure test of real people (which is also the origin of its name) to ensure accurate targeted compression.

B.

A200: As a simplified version of A400, it is specially designed for mass sports people, and is suitable for people who exercise less than 10 hours per week. It uses the so-called "engineering gradient compression" technology: different pressures are applied to different parts of the body, that is, the farther away from the heart, the greater the pressure, which promotes blood circulation, thus improving oxygen supply and stimulating the vitality of exercise muscles-improving strength, speed and endurance. Compared with A400, its compression technology is more extensive.