I think I've worn this about 4 or 5 times. I've cared for the collar with a brush, so there are no sweat stains. I washed it with Emal and lightly ironed it before storing it in the closet. Please understand that this item has been worn, and bid accordingly. Back length is about 80cm from the collar seam. Width under the armpits is about 56cm. For those who like it, please bid.