Someone discovered that animal grease or fat rubbed into the inner side helped the leather to become soft.

有人发现，动物油脂或脂肪擦到皮革内有助于皮革变得柔软。

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The material choice is simple: the shoe is a laminate with Carbon fibre for the core which gives the shoe its spring and strength, leather on the foot side and rubber on the walking wearing side.

这种材料的选择很简单：鞋材以一层碳纤维为主，碳纤维能提供鞋子必须的支撑强度，也很有弹性，接触脚的一面贴着皮革，鞋底的一面贴着橡胶。

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Costa added a soft side to leather by creating drapes with it as in the case of a cream colored dress with gentle curves.

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The leather strap closes on the front side of the wrist, resembling the vintage leather straps of the past.

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