be soaked to the skin
To be extremely or completely wet, especially through one's clothing. Oh, you poor thing, you're soaked to the skin! Come in out of the rain and sit down by the fire this instant! I was soaked to the skin after Daniel pushed me into the pool.
be/get ˌsoaked to the ˈskin
(of a person) be/get very wet: Don’t go out in this rain — you’ll get soaked to the skin.