These were my go to leggings for DD who wants leggings to start Y6 (they wear PE kit permanently since COVID and she's worn hand me down joggers and is fed up of them).
I have never found any that are so thick - not M&S/John Lewis/Next/American Apparel (which were nearly as thick but are now gone anyway).
Please tell me it isn't so!
She's quite small (in age 9 mostly) so it's not like she's a 5ft 3 year 6 who can wear an adult size 6!
Heeeeelp!
Edit - she needs black which is only available in cropped or in tiny sizes. Children's leggings no longer appear in the main menu and it looks like they are running down their stocks.