In the past, shin guards often utilized chemically foamed foams (such as cross-linked EVA or PU) as the inner shock absorption layer that is covered in hard plastic materials (such as PP or PE) attached via glue. The manufacturing process is complex while bridging agents in the foam make it difficult to recycle. This material is produced with a single TPU material with a hard TPU shell containing soft, physically foamed TPU that is injection molded to form shin guards.more
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In the past, shin guards often utilized chemically foamed foams (such as cross-linked EVA or PU) as the inner shock absorption layer that is covered in hard plastic materials (such as PP or PE) attached via glue. The manufacturing process is complex while bridging agents in the foam make it difficult to recycle. This material is produced with a single TPU material with a hard TPU shell containing soft, physically foamed TPU that is injection molded to form shin guards.