What's the difference between single density PU bottom safety shoes and double density PU bottom safety shoes?
PU is polyurethane, PU bottom is simply said to be made of polyurethane material soles. The bottom of PU is characterized by good toughness and elasticity. In this way, it is very well understood that the single density PU base, relative to the double density PU base, the toughness and elasticity are relatively poor, and the service life will be relatively short.
Single density PU base, relative to the dual density PU base, toughness and flexibility are relatively poor, and the service life will be relatively short.
For example, soles cracking, wearing a long time, easy to cause foot fatigue. Most of the low price safety shoes on the market are single density PU bottom, and the service life is about three months. If you want to buy safety shoes, generally higher prices, almost covering the whole environment.
