Good Cycling size chart

Mens
Chest  Waist Height
S 35-37 in 32-35 in 5'3"-5'7"
M 36-39 in 34-36 in 5'7-5'9"
L 38 - 40 in 36-38 in  5'10"-6'
Womens
Bust Waist UK Dress size
S 34-38 in 30-32 in 10
M 38-40 in 32-34 in 12-14
L 40-42 in 34-36 in 16-18