Got this for my little boy who is 7 and a massive Doctor Who fan. He loves it and has worn it on a number of dressing up occasions, with the addition of a long sleeved grey Tshirt under the tabard top and grey socks on his hands for an authentic cyber look! He is tall but even so the trousers are quite long so I took them up a bit, leaving plenty of growing room. Elasticated waist on the trousers, and the tabard top is adjustable with velcro so should fit most children within the age group I would say. Would recommend this to any cyber fans out there.