This bandana is versatile and easy to wear with added stretch to make it more comfortable than classic cotton. It measures 22″ x 22″ and weighs 0.16lb. Survival tips and topics include Dangerous Trails, Hiking Checklist, Stay On Course, Getting Lost, Hypothermia, Dehydration, and Bandana Uses. The microfiber fabric is odor resistant, quick-drying, seamless, sun protective (UPF 35 rated) and is safe to use on sunglass and glasses lens. Fits most.