Boody Body EcoWear Women's Boyleg Briefs - Boyshort Style Underwear Rayon made from organically grown bamboo Pull On closure These fabulously comfy undies are seam free, have a wide waist band, mid-rise and gentle stretch. They feel like youre wearing nothing at all because of the luxurious cooling bamboo fabric and fit. This item runs small. If you wear a medium, we suggest you purchase the M/L size. 80% rayon made from bamboo 13% nylon. 7% spandex. Moisture-wicking, ultra-breathable, thermo-regulating, and great for sensitive skin Never has ecowear been so luxurious. Boody is as soft as your favorite pajamas, but performs as high-quality activewear. Stay cool in the summer and warm in winter, without bulk. Bamboo fiber is lighter and softer than cotton and perfect for layering. No one likes being clingy. Unlike traditional cotton basics, Boody will keep its distance as bamboo fibers prevent static build-up.