It's a good job this isn't a discussion about men's underpants, isn't it. Although it could be - and why not? From the amount of adjusting I have seen going on, one size does not fit all.
I must admit to having thought of wearing DBH's boxer shorts, they look nice and warm. Plus they have a useful little pocket at the front for keeping your hanky in.
Those of us at school in the 40's and early 50's know all about those navy knickers with the pockets AND we had to do PE in them,we just took our pleated tunics off. This was co-ed and in good weather, in the school playground almost in the town centre. Oh the humiliation