This lunar overshoe was made for astronaut James Lovell, to be used as a back-up should it be required. However, it was never used, and was transferred to the National Air and Space Museum from NASA in 1978.
The International Latex Corporation made the overshoe which was part of the extra-vehicular (EV) equipment needed to walk on the lunar surface. The overshoes were worn over the pressure boots which were an integral part of the spacesuit, as protection against extreme temperatures and sharp rocks on the lunar surface.
They were constructed of a ribbed silicone-rubber sole, with Chromel-R uppers and Beta-cloth tongue and lining. The inner lining was constructed of 13 layers of aluminized kapton film with 12 layers of beta marquisette for insulation and protection. The sole had an additional two layers of beta felt for insulation.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.