We told my youngest son (6) that we got him an invisibility suit and when he wears it, we can’t see him. It’s hysterical to watch him run around thinking we can’t see him. It did get holes in it pretty quick but worth the laughsQuality was great... the size was smaller than I expected but we made it work. My son is 3’8” and about 44 pounds- usually a size 6 fits fine with room to spare. This was SNUG.I cut off the sleeves and made “gloves” so he could eat and do other activities. The material is man made so after cutting off I used a lighter to burn edges and keep them from fraying. I kept the mask attached (it was too complicated to remove it with the zipper). When he didn’t want to wear the mask (which was most of the night) he just rolled it down so was kind of like an inverted turtle neck. (Before I painted it I did try having him wear the suit backwards so that the mask would open in the front but it wasn’t possible because the zipper scratched his face, also the thumb holes on gloves faced the wrong way.)Quality was fine but runs smallMy 4 yr old loves to dress up so I got him this costume and he loves it. Its def hard to get on once it's folded inside out but he loved it. Fits him greatBought for my son around halloween and stillMonths later, with a rowdy son, it’s perfect!Med fit my 9 yr old son perfectly. He is4 ft 4 and 70 lbs. He looks creepy as hell walking around the house with this on. Seriously. By itself its the best costume! Can't attest to the quality since he has only worn it long enough to try on and scare his sister, but he says its comfortable and he can see well and breathing is fine. We had no problems getting it over his head, over his hands and zipped up. Ill be happy if it just lasts through trick or treat.I read several reviews saying to order a size down, and others saying to order what the size chart recommends. We ordered what was recommended and it is a little big. However, it's not an issue and doesn't look strange, and he'll be able to wear it longer (if he wants to!). It is comfortable, that is the first thing my son said when he put it on. He loves it!Perfect fit, breathable, and simple. Makes for a good shadow Halloween costume.