The Sona Mosquito Head Net is a lightweight polyester mesh cover for your head and neck. Fine mesh helps keep mosquitoes and other flying insects off your face without spray. It measures about 15-3/4" x 6-1/4". The elastic neck is about 7-7/8" and there is a 2-3/8" elastic loop. Camouflage finish. One size fits most and can be worn over a hat. Use it for camping, hiking, fishing, gardening, and other outdoor work. This is a physical mesh barrier, not a treated medical device.