Or lycra cycling shorts! I wear them under my dress trousers all the time. I would go without, but every pair of trousers I own gapes at the back when I bend and is usually too low at the back when I stand! I take a size 6 trouser (UK) if I can get it, but I have too as my waist is ickle and my legs are short! Even the size 8's gape. I wish they's bring sizes in line though, I take a size 12 in sewing patterns! I insulted a friend who wanted a summer dress made up by sugesting a size 18 when she usually only takes a size 12 - she saw why though when I explained it. Ah well. I'm having a rambling thoughtful night.
Charlie.