Originally Posted by
lil brown bat
You may know a whole lot more about chafing when your day is through, but if people believe that they don't need bike shorts, nothing short of an Experience will convince them, so go for it.
I wear under-armour type shorts under cheap cotton shorts. You can get a no-name brand shorts for ~$10 or the Under Armour brand for ~$30. It works well on my round trip of 23 miles. I don't own padded bike shorts.