Is this ok to let my husband do?

I honestly don't know but if you are truly honest with each other than sit down and have a talk with him about it, see if it's just the pantyhose or if it is all womens clothes. Ask yourself would you be okay with this (him wearing the panty hose) seeing that he already tried it on and asked again to wear them it seems he might have a thing for womens clothes(cross dresser) .I have a friend who likes to wear womens clothes all the time. If you don't mind and he don't mind then I guess it's okay but if you think you would mind then maybe you better have a serious but honest talk.