One of the signs accompanying the CWG. 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.