unless it's really really delicate... like a spiderwebby kind of lace (has a sweater that's really delicate) stuff can go into the washer on delicate cycle (if your washer has a delicate cycle)
Dont wash it with your jeans... and use cold water and don't put it in the dryer...
It's generally the agitation of the washer that does the most damage - -long as you are on delicate... you are good....
/me would pay money to see j8ear in a cute silk bra