| 摘要 |
This invention relates to a midsole in use for Masai walking specialized rolling footwear, having an upper pad in where an airbag and tunnel are form ed; the midsole can be easy and simply produced because at least one support ing projection made of polyurethane is formed on the airbag and tunnel; supe rior shape recovery of a bottom piece bending frequently during walking is a ccomplished and an effect of the walk stability increases, as well as keepin g the bottom piece and footwear initial forms by preventing the supporting p rojection made of polyurethane from hydrolysis reaction.
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