The outer layer of the overshoe was made from metal-woven fabric, except for the ribbed silicone rubber sole; the tongue area was made from Teflon-coated glass-fibre cloth.
Here we go again folks; Armstrong's famous footprint on the moon. It is reproduced in books and magazines etc all over the globe. But when we see Armstrong's boots being cleaned for a museum display, we don't see the same tread... Got you NASA!
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This example shows how shallow a conspiracy supporter's research really is. The tread is on the boot cover known as an Overshoe (right side of picture below) not on the boot itself. These are slipped over the boots before leaving the Lunar Module. They are designed as an insulator against heat in the soil as well as providing extra traction.
Are you getting the picture now of how shallow these people think? Sad isn't it?