In sleep masks for several years, without them I can not. I had a lot of different masks, but this quality ever! In Russia, just nowhere you can not buy anything like it. The mask is very happy, microfiber, pleasant to the body, lukewarm, but the skin still breathes. Easy adjustment of the size of gum (not Velcro), never too tight. Microfiber material as cloth shopping, know that this material can withstand a huge number of washes, so masochka will be very durable.