Because the leather lining is made of cashmere, once the cashmere products are stirred and washed by the washing machine, the cashmere products will be felted, which will destroy the excellent performance and affect the appearance of cashmere. Therefore, cashmere must not be washed by the washing machine, and it is better to dry clean it or take it off and wash it by hand.

1. When it is slightly soiled, first pour the neutral detergent into warm water at about 3 degrees Celsius, and then put it into clothes and gently pat it with your hands.

2. Wash it in warm water at about 4 degrees Celsius for several times until it is clean;

3. Add a little vinegar or softener to clean water, and put the washed leather-lined collar into a cloth bag and dehydrate it in the washing machine for 1 to 2 minutes;

4. Smooth the leather lined collar and iron it with a steam iron at 12℃ to 14℃. The iron should not directly touch the leather lined collar;

5. The leather lined collar can be flattened and dried after shaping.