These headbands are seriously the solution to that annoying sweat-dripping-in-your-eyes problem during workouts. The polyester-spandex blend is stretchy enough to fit any head size comfortably - they stretch from 9.45 inches up to 15 inches without feeling tight. At 3.15 inches wide, they actually stay in place and absorb sweat instead of just pushing it around. The fabric is lightweight and breathable, so you don't get that overheated feeling some thicker headbands give you. I love that they come in a 5-pack with 3 black and 2 gray - perfect for rotating through your workout week without constant laundry. They work for everything from yoga to running to weightlifting, and the neutral colors mean they don't clash with your workout gear. The best part is they actually work - no more wiping sweat from your eyes every five minutes. They wash up great too, no shrinking or losing their stretch. For the price, getting five quality headbands is a steal compared to buying them individually at sports stores.