I used to wear the M&S sumptuously soft before they rebranded them and made them shit
Picked these up from Asda randomly and they're really good. Big, cover everything, soft, stretchy and not entirely hideous so recommending if anyone is looking
Not tight over the stomach/band either or or the leg holes
Sizing seems fairly standard
direct.asda.com/george/lingerie/knickers/black-supersoft-full-brief-knickers-3-pack/GEM1125465,default,pd.html?cgid=D27M4G1C1