Check the label of the cashmere product you have. If it has the hand wash symbol, you will have certainly have to do so. Some cashmere products come with trims that have to be dry cleaned after all.
Select a detergent that is very soft. A baby shampoo can also do the same job well as it is very gentle and cleans thoroughly. Empty and wash out the sink for washing. You can also use a tub or bucket for the purpose.
Fill the sink with cold water. Squirt some baby shampoo and make a soapy solution. Dip in the cashmere product and swish it around to soak it up. Let the cashmere soak in the soap water for around twenty minutes. Take it off, empty the sink water and fill again with cold, clean water. Rinse a few times to get rid of all the soap. You can squeeze the cashmere gently under the water to get rid of the soap. However, do not wring the cashmere in any case because it will loose its shape and fitting.
Now take the two towels or more and roll the cashmere in them . Press the towels to dry off the excess water off the cashmere. Place the product on a towel rack so that it can dry up without losing its shape. Do not dry it in direct sunlight as it can take off the color and dull it. Flip over the cashmere product when the top dries. Let it dry well before wearing or storing. Clothes stored directly develop smell and fungus because of the moisture still left in them. Reshape the clothes and use accordingly.