Carry weight
From UnReal World Wiki
The amount of weight your character can carry is determined by the formula: Character weight * 1.5
So you can essentially carry one and a half your own weight. The penalty for doing so is determined by your endurance.
Record holders for heaviest characters by Culture (please edit the numbers if you find new world records):
Driik 201 lbs / 91 kgs
Islander 221 lbs / 100 kgs
Kaumo 247 lbs / 111 kgs
Kiesse 217 lbs / 98 kgs
Koivula 210 lbs / 95 kgs
Kuikka 162 lbs / 73 kgs
Owl 157 lbs / 71 kgs
Reemi 235 lbs / 106 kgs
Sartola 265 lbs / 120 kgs
Seal 157 lbs / 71 kgs