There's two extremes I notice when it comes to armour. There is the one extreme where armour is portrayed as being bulky and hard to move in such as the knights armour. And there is the other extreme where since armour was made to fit person for persona and to be distributed evenly so that even a 100lb armour would not feel heavy and be so light that you can do cartwheels, hand stands, jumps, run, and even fancy acrobatics. That armour is so light that someone who's not conditioned would feel its like wearing a T-Shirt. So when I found my sister's weighted vest that totals to about 20 lbs, I decided to test it out. At first it did not feel heavy at all and it felt so light I can jump around it and even walk 2 miles without feeling exhausted. So I thought real armour must be as light as the other extreme is, so l thought plate armour was lighter than a shirt. However once I started crouching and doing other prone movements to test swordsmanship and aerobics I began to feel pressure. In fact I was surprised as hell how tired I got just doing squats and practising low level attacks. In addition when I tested running, it suddenly felt so heavy. Not as heavy as Hollywood portrays mind you but I began to wonder if some of the tests such as the link below had validity. Treadmill tests for heavy armour As I was finishing my first mile and I reread the above article while I was resting, everything was so spot on. Also trying to do high level acrobatics such as jumping over hurdles in a track field and some of those fancy gymnastics was almost impossible. So it makes me wonder how wearing an armour would be like. I know its a running vest I used that had pockets filled with metal bars that totaled 20lbs, far less than a typical breastplate so its a different tool. In addition I'm not exactly a nerdy waste as I lift weights enough that I can curl 2 sets of 50 lbs dumbells casually and benchpressing a barbell with 50 extra weights on both side for 100 reps ain't hard. So does that explain why wearing the vest was initially not difficult? I am so curious how armour felt like but don't have money right now to buy it so I ask people with experience here!