We were sewing up our final batch of Pomegranate Punch undies and ran out of binding. We happened to have this gorgeous Golden Yellow in our binding stash, and so Hibiscus Blossom was born! Good news: they look great together; bad news: we only ended up with Originals S-XL. These will only bloom once, so now is your chance to pick one up. The Thunderpants fabric is 90% organically grown cotton and 10% spandex to give it that super comfy soft stretchy feel. The waist and leg bands are constructed in the same fabric, eliminating the need for the addition of nasty grippy elastic. We test every lot of fabric for ultimate performance. To preserve the vibrant colors and life of the fabric we suggest you do not soak or bleach your Thunderpants items. Use a gentle detergent in a cold machine wash and dry your Thunderpants on the line (they will survive drying on low, but may fade a bit).