With all construction practices being the same. It just comes down to how much weight your want to carry and any temperature difference you wish to feel. I honestly don't notice a big difference between my 4 yard box pleat and my 8 yard knife pleat both in 16oz. When I am hot, I am hot and I haven't worn one outside then turned around and changed into another to verify the difference. I fell the same about cold weather. I wear the kilt I want to wear for the look.