I found that the Hincapie shorts fit pretty similarly (in size anyway) to PI shorts. The Hincapie Signatures had a bit more of a racier fit like the Elite and Pro PI shorts and had a more dense chamois pad (important for me as a heavier guy who crushes light, spongy pads) compared to the lower end styles. Lately, all my short ride PRs I've set with a pair of Hincapie CoolMax shorts. Longer rides I still tend to use my older PI PRO shorts or my team's shorts (Jakroo with the upgraded pad - the stock pad is too soft for me).