I rode 25 miles today. I was going to wear a pair of unpadded cycling shorts, but didn't. I wore a pair of jogging shorts that have bloomers in them. Bad idea. They rode up and irritated me on the ride. I have a Trek 7200, the seat is kinda cushy, since it's supposed to be a comfort bike. However, on longer rides I get kinda uncomfortable on the saddle. I don't know if padded cycling shorts would counteract the seat or just add problems. I tend to sit further back on the seat and I'm slightly more comfortable then. I can't really pinpoint the source of my discomfort. I typically ride 10-15 miles a few days during the week and then a longer ride of 20 or so on the weekend. Around 10 miles I'm okay, even with these shorts.