Would a weighted chain mail shirt be good to build endurance?
Yes, actually. Weighted clothing is more than a cartoon novelty. Training with wrist and ankle weights, or a lead vest, or a weighted belt is a classic strategy to build strength and stamina without dedicating time to exercising. You can also wear heavier boots than you would normally. Wear insulated steel toe Danners or Redwings when you go anywhere, rather than crappy Crocs or UGHS. There is a reason fat people usually have huge calves and thighs; it takes a lot of strength to haul that bulk around.
