I like these tights; they are really warm, fit well and the bonus is the side pocket big enough for my phone. Will probably buy another pair.
I bought these in a xxs (Uk8). I have other decathlon tights from the gym range in the same size, which have a 29'' leg and normal waist. These tights are 27'' and are way too short for use in the very cold weather which they are meant to be used for. The waist is really tight compared with other decathlon leggings. I am 5ft6.5 and a UK8-10. The description on the web site does not mention the leg length of these. Would say they are 7/8 for an average size lady. Go up 1-2 sizes. Well made and very nice material however.
Very comfy & keep you warm