I recently purchased the swim brief endurance from Speedo, and I am very happy with my purchase. However, I did note that the briefs were tight around the thighs (Many complaints on this issue). This can be resolved by just putting the suit in warm water, and then stretching the areas that feel tight. Even though you do this, it will still feel a bit tight. My suggestion is to wear it a couple of times at the pool. This should make the suit adapt to your physique, allowing for a more comfortable fit. I hope this helped! I think the speedo sizing is mostly correct, but you may feel tight around the thighs. My recommendation is just to measure and select the size accordingly. It will loosen a bit when you start to wear it.