Amazing light blue Apollo-era EVA boot sole molded with RTV 630 silicone rubber, measuring approximately 12.75 x 5 x 3.75, with wide horizontal tread lines each .25″ deep, .75″ wide, and ranging in length from 3.75″ to 5″, with overall thickness of latex roughly .25″. Inside of sole marked "230." In fine condition. Designed specifically for extravehicular activity, this is an ideal example of the sole that first walked across the lunar surface. From the collection of a member of the engineering and design team at ILC Industries in Dover, Delaware, from 1964 to 1972.