the shirt is 85% silk and 15% linen. i wash wondering if i can just wash it at home. the last time i washed and machine dry a dry clean only sweater, it shrunk down to a doll size. i asked some people and some people say i have to hand wash it and hang dry it. others say i only have to hang dry it and i can just machine wash it. and others say that neither would work and i have to dry clean it. so what's the official answer?