The first time I wore these bike shorts was on a 12 hour spin for charity. I took a 10 minute break every 3 hours and these shorts were perfect! I even forgot to use any anti-chafe cream and had zero chafing. I'm ordering a couple more pair for RAAM!
I'm 170# and 5'9" the medium size was perfect. After 2 rides at 100+ miles I'm very pleased. Nice compression and no saddle problems or pain. The best of my now 4 Assos cycling shorts.