The inside of the fonthooves is sperate - the handel is made on a sheet plastic and this is glued on a pE foam . just press it together (in the inside the handel and slip ist out of the arm repair an slip it in again - you will find anthing on a home improvement store.
The suit you can wash in a bath on handwarm water. I usaly hang em in the shower and usw shampoo and shower em with handwarm water.
The head is handwashable - use motorcycle helemt cleaner for nasty dirt - or 100% household alacohol with water and a piece of old foam and brush it out.