Last time I was in there I stood in front of the changing room mirror in some ruffly blue number that made me look like a sinister, aged, very large doll and suddenly wondered WTF I was doing there. Their sizes range doesn't seem to extend past a ten, IIRC, and queuing with 300 stick thin fourteen year olds made me feel like a sad old wreck.
This is because they only stock clothes in a children's "age 13" size. Although they reckon they have a variety of sizes, the measurements in the shoulders, bust and hips are exactly the same, and the only difference between a Topshop size 10 and a Topshop size 16 is more room in the tummy.
So your choices are:
Size 6 (translation: aged 13 and not hit puberty)
Size 8 (translation: aged 13 and not eating)
Size 10 (translation: aged 13)
Size 12 (translation: aged 13 and hit puberty last week)
Size 14 (translation: aged 13 and a childhood obesity crisis)
Size 16 (translation: aged 13 and heavily pregnant)
None of these do me any favours...