The generator of working shoe is worn to make the shoe is worn comfortable, begin to increase soft leather lining and soft leather insole to working shoe, but weight did not decrease however.

• 工作鞋的生产者为了使鞋穿着舒适 ,开始给工作鞋增加软的皮革里子和软的皮革内底 ,但是重量却未减少。