I have zero bum, blame my mum's genes plus middle age. So most joggers hang low and are really annoying round my crotch.
I have three pairs of Bam joggers (one of the thin summer ones is just about OK) and one Hush and they all do this.
I saw the Jack Wills looked slimmer but with a very teenage logo and in my mid fifties I cannot pull that off.
They are for general lounging but also for going to Pilates in cold weather so they do need to be comfy to walk in.