I got size Medium.

BODY: I'm about 5'6 and more on the skinny side but have an athletic body so and it fits well(If your muscular, it'll fit better). The arms & legs feels like a slim fit(so this is where your muscles will shine). And since its slim on the pants part, it'll be pretty uhh......detailed down there. I recommend people to wear shorts or something underneath haha. The back of the costume is secured with 2 stick on/off straps. So it might see your back.

CHEST: The muscle chest feels big but it doesn't look bad when you wear it. The lights on the chest spreads from the middle going outwards. Looks pretty cool. You can't replace the batteries so that's kinda of a bummer(so save your lights for the Halloween night/party only!!) The switch for the light is hanging on the inside front(near your stomach) so it moves around a little when you walk but its not bothersome cause there's a sheet covering it on the inside.

EYE MASK: Is made of some kind of rubbery cotton/polyester. The head band is flexible so it should fit all head sizes(unless yours is bigger than an average sized head).

RING: Is plastic.......looks like a 25 cent machine ring to be honest lol. But from 5 feet or further away, it looks okay. It would be better if the ring can light up also........

SHOE COVER: I would probably say is the only bad thing. I wear size 10-11 on shoes and the bottom doesn't cover my whole shoe. I would say the shoe size it would fit would probably be a size 8 1/2 and below. So if your a big foot green lantern like me, that's how it is.......but it covers the shoe laces so that's good.

Overall, I'm satisfied =D