Do these shorts actually have 20% stretchy spandex it them? I would like to know the exact materials used please. I bought Billabong Hydro Platinum X and Billabong LOC Platinum X shorts this month from backcountry, and neither of those have any stretch material in them. They are 100% polyester, eventhough the Hydro shorts are advertised as having Hydro Stretch and a review for the LOC shorts say they are "stretchy".
Thanks so much for the help!