The process for providing clothing for inmates varies between correctional facilities, but most facilities allow clothing to be mailed or dropped off in person. There are generally restrictions placed on the amount and type of clothing that can be given to inmates, so check with the facility before proceeding.
Most facilities only allow inmates to wear outside clothing to trial or court appearances. During all other times, inmates may only wear clothing issued by the holding facility or purchased at the facility commissary. There may be exceptions to this rule in some locations. For example, the New York Department of Corrections allows inmates to receive cold weather accessories such as gloves or raincoats from outside the institution.