EVA (Ethylene-vinyl acetate) and PU (Polyurethane) are two commonly used materials in the manufacturing of insoles and footwear. Here is a comparison of these materials:
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Cushioning: EVA is known for its excellent cushioning properties. It provides a soft and comfortable feel underfoot, absorbing impact forces and reducing pressure on the feet. PU also offers good cushioning, but it is generally firmer than EVA.
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Durability: PU is considered more durable than EVA. It has better resistance to wear and tear, making it suitable for long-lasting use. EVA, on the other hand, may compress and lose its cushioning properties over time, especially with heavy use.
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Weight: EVA is lighter in weight compared to PU. This lightweight characteristic adds to the overall comfort of the footwear and reduces fatigue during activities.
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Flexibility: EVA is highly flexible, allowing it to conform to the shape of the foot and provide a more customized fit. PU is also flexible but tends to be less pliable than EVA.
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Stability and Support: PU offers better stability and support compared to EVA. It provides firmer arch support and helps maintain proper foot alignment. EVA may not provide as much support, especially for individuals with specific foot conditions.
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Moisture Resistance: PU has better moisture resistance than EVA. It is less prone to absorbing water, which can help keep the feet dry and prevent the growth of odor-causing bacteria.
Ultimately, the choice between EVA and PU depends on individual preferences, foot conditions, and the intended use of the insoles or footwear. Some people may prefer the soft cushioning of EVA, while others may prioritize the durability and support of PU.
More materials can be found here: https://www.eva-block.com/products/.