This is my first pair of coeur tri shorts. Other reviews & the size chart had me nervous that I should size up. I am a size 8. The medium was spot on. The chamois is perfect, I don’t think I’ve ever had a more comfortable ride (90 min on trainer immediately after opening package). My only negative comment is the high waist. At 5’4”, the waist is just ridiculously high on me. It’s probably not an issue if you are taller. I kept them due to the high saddle comfort factor .