I went into primark t'other day (yes, I know that lots of people will tell me how unethical it is to shop there, but when you have an income like ours you cant afford to be choosy) and bought a pair of their support leggings (by the opaque tights) they are fab! wont bobble because the material is more like an 80den tight but much, much thicker. a bit of a shine to them but the best thing about them... they made my less than lovely legs and bum look pretty spectacular. now, im a size 8/10 with a wobbly bum and thighs that i could do without, but they look great. and, they dont sag! going to get a brown pair today and a grey pair.