Fulfillment by Amazon (FBA) is a service we offer sellers that lets them store their products in Amazon's fulfillment centers, and we directly pack, ship, and provide customer service for these products. Something we hope you'll especially enjoy: FBA items qualify for FREE Shipping and Amazon Prime.If you're a seller, Fulfillment by Amazon can help you grow your business. Learn more about the program. Features include: 4-way stretch micro-mesh top releases heat for year-round comfort Smooth fit ties securely in the back Patented Sweat Seal channels sweat back and away from the eyes and face! Grip Technology keeps it in place during any activity Dryline fabric absorbs sweat, wicks moisture and dries quickly Will not lose shape, form or stretch out Stays in place during any activity One size fits both men and women Works great under helmets The Halo Protex Bandana is great for athletes that prefer bandanas but need the extra performance that a cotton bandana can’t offer. Our bandanas feature our patented Sweat Seal Grip Technology to redirect sweat away from your eyes and face so you can keep focused. The ability to tie the sweatband is a favorite among our customers who prefer a custom fit. The Halo Protex Bandana has a lightweight, effective design that allows for a very comfortable fit. The smooth mesh top helps keep your head cool even on hot summer days, as well as providing excellent sun protection.