This jacket was worn by astronaut Neil Armstrong for some segments of the Apollo 11 mission. During the Apollo missions, the astronauts were able to change out of the full pressure suit they wore during launch, into a lightweight four-piece garment known as inflight cover garments. The complete outfit consists of jacket, which was equipped with reinforced holes on the upper torso through which the medical connectors could pass, and snap closures at the wrist and down the front. The trousers had a snap and elastic waist for adjustment, and snaps at the ankle for attachment to the boots, and for fit. The boots had snaps for attachment to the legs of the trousers and a circular Velcro patch on the soles.

The garment is constructed of a Teflon-coated beta cloth which is highly fire resistant, and the "slippery" qualities of the fabric enabled the astronaut to put it on and take it off with ease in a weightless environment.

The jacket had a US flag on the left shoulder and a NASA "meatball" logo on the upper torso. Flown garments had a mission symbol attached to the upper left torso.

NASA transferred this item to the Museum in 1974.