1, silk and cotton trousers can't be washed. Cotton trousers containing silk can't be machine washed because silk is a natural fiber. Machine-washed cotton trousers are easy to shrink and agglomerate, so they can't keep warm and can't be machine-washed.

2. Generally, silk pants or clothes should be dry-cleaned or hand-washed. Do not use too corrosive dry cleaning agent when dry-cleaning. If they are not cleaned properly, they are easily washed off. If you wear silk cotton trousers, you can wear them with other leggings or autumn trousers, so that the cotton trousers will not be too dirty and the frequency of cleaning can be reduced.