The addition of the memory of the personal computer, the static electricity being electrified during operation of HDD replacement, it was in a state not good for the equipment, so I bought it, apparently the charge rate fell, but for everyday use a little Usability is low, because the bottom part is hard and it hardly bends, normal walking is getting noisy.
Purchased to handle electronic components. When using ordinary slippers, it was plagued by static electricity on the dry day in winter, but the problem of static electricity was solved and I am satisfied. The comfort is personally, such as being normal and not complaining. (There are so many desk work that I do not often walk around, so I do not care so much.)
The shoe sole has cushioning properties, it is soft, it feels fluffy. It depends on taste, but for me it did not depend on a bit. I think that there is no problem at all if walking frequency is small, but in my case overall strength was insufficient.