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One of the signs accompanying the ICG. It reads

Clothing and Medical Care

During flight, the Apollo astronauts took off their bulky spacesuits. The lightweight garments underneath were designed for comfort and constant medical monitoring.

The constant-wear garment was made of porous cotton and contain small pockets that held dosimeters used for monitoring radiation exposure.

Through slits in the constant-wear garment, electrodes from the biomedical harness, attached to the skin, recorded data on heart rate, body temperature, and other vital signs.

The two-piece coverall, or in-flight suit, was constructed of Beta cloth, a special fireproof material. The coverall provided warmth, and the pockets on the legs were used to stow personal items.