I have used this variant in my safety shoes. And what can I say: after a short adjustment period, I do not want to miss it. The original soles of two of my safety shoes I've exchanged with this. Even in high-priced models of the manufacturer, the insoles are useless. They offer no support for the foot and are so thin, they could also be smooth away. Thus, the feet and legs ache quite significantly and make your working day a torture. However, since I use the insoles, these complaints have laid. Anyone who wants to do his pads to the bottom of what good should invest in proper soles - well, they are not cheap but worth it definitely.