Dear Customer, First of all, we would like to thank you for your interest in Koton. According to the height of 173 cm and weight of 71 kg that you provided, the estimated size 32 will be suitable. However, body measurements may vary from person to person. You can easily determine the most suitable size for you by reviewing our size chart and product reviews. If you like, you can search for our Slim Fit Denim Shorts Bermuda with Pocket Detail Cotton product in our brand with the code 4SAM40059ID600. We present it for your information and wish you healthy days.