I bought this new. It feels very warm and is great for protection against the cold, so I think you'll be fine with just a long-sleeved T-shirt or a thin top underneath! Conversely, sweatshirts or knitwear might be too hot or make you look bulky. The hood is large and covers your face. Only the inside of the hood is fluffy, so your head will also be warm. I started going to the park and haven't worn it because I thought it was a waste, but I'll give it to someone who will wear it nicely⭐︎ Size Shoulder width: 48cm Length: 73cm Width: 51.5cm Sleeve length: 50cm Two attached badges are included. There are some pills on the cuffs, but they are not very noticeable.