Sizing as as follows with the inches given to approximately the starting point to how much it stretches comfortably
Size (inch)
Small
Bust: 26.5 - 34.5
Sleeve: 27.5
Length: 15.5
Medium
Bust: 28-36
Sleeve: 28
Length: 16
Large
Bust: 29.5 - 38 inch stretch
Sleeve: 28
Length: 16