I haven't worked out in these yet but will review based on try on since these shorts don't have any reviews. They fit really nicely and didn't give a sausage-leg effect. The liner is super soft and comfortable but it is not padding. I think that will work well for my tri even if it's less comfy for the bike because the other tri shorts I've tried have been too bulky on the run. So as long as you know what you're getting and that's what you're looking for, these are great shorts. I ordered a small based on the size chart and the fit is correct.