The Mark III or MK III (H-1) is a NASA space suit technology demonstrator built by ILC Dover. While heavier than other suits (at 59 kilograms (130 lb), with a 15 kilograms (33 lb) Primary Life Support System backpack), the Mark III is more mobile, and is designed for a relatively high operating pressure.
Enjoy this overview of the suit shared at NASA Tweetup STS-134.
This isn't the Mark III.
Craigthepope 3 months ago