These adorable lightweight coats are made with bamboo Lycra fabric 95% bamboo, 5% spandex. The measurements are as followed 
5/6
18" long in front and hangs a little lower in back 
Width-11 inches on top and flares out towards bottom 
Arm -15" starting at neck seam.
7/8
19 long in front and hangs a little lower in back 
Width-12 inches on top and flares out towards bottom 
Arm -17" starting at neck seam.
Returns accepted-please see return details