Hiya,
Just ckecked mine and they are indeed 2% elastane. They're black skinny leg jeans, the waist isn't super-high, but high enough to keep tummy under wraps! I got them about a month ago in New Look, but I saw they still had the other day as i almost got another pair- I love them!!
Hope these are what you're looking for
Oh and also they were only 20 quid too