I was really looking forward to this sack, I knew that the fabric was going to be thin and it's fine for me because where I live it's very hot, and I really like it, it feels soft, has sachets on both sides. As for the size, here comes the bad; I was guided by the measurements that the image says and I ordered XL because I knew that I am about 100cm chest, and I am normally size G. And very small wine, I don't know what size they sent because it doesn't say the size, but it looks like an S or even a M. I have just left if I close the button, so I will only use it open. But I loved the sack. I'll buy another color. But check if it is the right size