Equipment Weight is a Stat in Nioh. It is the total weight of your equipment. Affects Agility.
You can check your equipment weight rate at any time by checking on William’s status, and a popup with the same information will appear at the top of the screen whenever you’re swapping or equipping new items. You’ll also see the information during leveling up at a shrine.
As your equipment weight rate climbs, the color of the percentage changes. Green is good, red is bad. By the time you get to red, you may have the highest defensive multiplier you can cobble together, but your ki will drain too fast to allow you to fight.