Both PU (polyurethane) and EVA (ethylene-vinyl acetate) insoles have their own unique advantages and disadvantages.
PU insoles are known to be more durable and provide better cushioning than EVA insoles. They are also able to maintain their shape and structure for a longer period of time, which means they offer consistent support over the long term. PU insoles are also less likely to compress or flatten out after repeated use, which means they can retain their shock-absorbing qualities for longer.
On the other hand, EVA insoles are generally lighter in weight than PU insoles, which can make them more comfortable to wear for extended periods of time. They are also more flexible, which means they can conform to the shape of your foot more easily. EVA insoles are also typically less expensive than PU insoles.
Ultimately, the choice between PU and EVA insoles depends on your individual needs and preferences. If you need a highly durable insole that provides maximum cushioning and support over an extended period of time, then a PU insole may be the better choice for you. However, if you prioritize comfort and affordability, then an EVA insole may be a better option.