Product is good stylish and warm winter not for heavy but in a heavy use it under the jacket if you are comfortable because I'm using same like this.. reason behind its hoody is goody for the save cool winds. One most important is size little bit looser of you are using M size then this product runs S size for you if you're above 62kg then it will fit in your body if your are under this then S size won't fit in your body. It's material is like rubber when your are long time in a sunlight then...