Watch out, the new Jurassic Park movie! This prehistoric animal is going to be much better than anyone you have ever seen on television. Allow us to introduce to you the mammal that may not always be the tallest one in the room, but will definitely be the one that most frightening. Our T-Rex Dino Vest Costume for boys comes in the color green and will make sure you look exactly like the real thing. It isn't every day that you can show up to a bash and automatically grab the attention of all the people in the room. That is exactly what will be happening to you with an item like this. It's OK to show off sometimes, this Halloween will be the perfect time to do so. So, get ready to show your buddies how loud you roar! It's going to be an awesome time in a costume like this.