Pant size 170/80A is the standard size of clothing, 170 stands for height, 80 stands for waist circumference, and a stands for body shape; Body type: A normal body, B obese body, C obese body and Y thin body. 80A changed to standard size 3 1-32. The city ruler is 2.4 feet. The actual waist circumference of 80CM is 3 1.5 yards, but there are no pants of 3 1.5 yards. Do you want to try on size 3 1 or size 32? Because the standard size 80A means it is suitable for people with a waist circumference of about 80CM.