Top is BREEZE size 110. Bottoms are Nishimatsuya size 100! The waist is elastic and stretches well. I used to wear them as a set. The tag on the pants has been cut off because my name was written on it. They are still wearable, but please refrain from purchasing if you are sensitive to used items! The pants have slight stains, but they are not very noticeable. Please check the condition in the images before purchasing♪ Season: Spring, Summer