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, lovely fabric eliminating the need for the addition of nasty, grippy elastic and adding to the enjoyment of your Thunderpants experience. All the garments are made locally and lovingly in Portland, OR.
To preserve the vibrant colours 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, not in the dryer.