Hero costume

Hi there! I'm looking to buy a superhero costume, I'm not sure whether it should be Spiderman or Batman, but I want it to be really tight-fitting. I'd like to find someone who has one and is willing to sell it to me, or perhaps you could recommend some affordable websites where I can find them. I'm from Spain.

herostime and zentaizone are two common sources for spandex cosplays, ht even does custom designs that you can submit

Thanks! But I am searching for cheaper suits

You can try zentaizentai. Or eBay has some super cheap Spider-Man suits, but can be hit or miss and near quality as the others, but I’d give a try if need super cheap. 

You could try browsing Amazon for superhero zentai suits. The quality will likely be inferior, but if cost is your primary consideration, you should certainly find one to fit your needs.