This vest is sewn from Pikachu fleece fabric. It has a high neck to keep the neck warm. The fabric was purchased over 10 years ago, but it has been stored well and has no unpleasant odors or discoloration. Also, you don't often see fleece fabric with a Pikachu pattern like this subtly woven into the design these days, so you're unlikely to see anyone else wearing the same thing. The size is listed as 70, but please check the flat measurements in the photos. It's a lightweight and warm vest that's easy to put on, so it can be worn by newborns. Thank you for your understanding. Please consider purchasing.