Hello, considering your height and weight, 1.85 cm tall and 90 kg, we recommend that you choose size L for an ideal fit and comfort. If you wish, you can also check the body measurements from our size chart next to the image. Considering your height and weight of 1.68, 65 kilos, we recommend that you choose size S for an ideal fit and comfort. If you wish, you can also check the body measurements from our size chart next to the image. The product is made according to men's patterns, but you can choose it according to your body measurements if you wish. Thank you for your interest.