RomartexOpaque 40 Denier Microfibre Hold Ups Stockings, 25 Colours, Sizes S-XL

Which one for a size 20?

What size whould i get at 5"11

I have very slim legs. i tried buying size small stockings from tesco and they were still too big for my thighs. will this size small fit a uk 6?

I am a size 22 24 will a size XL fit me