Greetings, I stumbled upon this, was wondering about the sleeve length. If I do custom measurements and place the length of my arm as shown in the measurement chart will it be adjusted to the correct length it should be or will the sleeves be as along as my arms?

Hello, I was looking at the Ggio Vega cosplay costume but I had a question. The pants on the picture look like it's one part, like a dress or something like that. Is that just on the picture or is it really just one part? Primo.