APOLLO OPERATIONS HANDBOOK EXTRA VEHICULAR MOBILITY UNIT

The result of eighteen years of design and research, the A7L and A7LB spacesuits served during the Apollo, Skylab and Apollo-Soyuz missions. Designed by International Latex Corporation (ILC) Dover and with a life support backpack provided by Hamilton Standard, the A7L featured a water-cooled undergarment, an inner blue pressurized layer, and a tough white nylon outer hull. After the disastrous Apollo I fire, ILC produced a version that utilized beta cloth that is fire resistant up to 650 degrees Celsius. Two basic versions of the suit were used during Apollo