The newest ankle bootie EzeefitskinsTM is marginally thicker (.087mm) than the Ultrathin material, but is considerably softer and has much more stretch. It also has a microfiber interior (logo goes on the outside) which feels like silk against your skin. The new Skins material also provides a bit more padding than our current Ultrathin material, yet takes up no more room. The light gray color disappears under a sock.