1、Quality Material: The hat chin strap is made of polyester and plastic material with durable clip, comfortable and long lasting to use, quite safe, without knots. 2、Good Workmanship: Exquisite workmanship, beautiful appearance design. Windproof hat straps are suitable for hat protection device in windy days and sports activities. 3、Windproof and Detachable: Windproof hat straps can avoid the risk of the wind blows away your hat, the detachable and retractable design is convenient and practical. 4、Scope of Application: Adjustable hat strap is suitable for straw hats, fisherman hats, sunscreen hats and other hats. There is no need to worry about the displacement of the hat. 5、Multi Function: Adjustable hat strap can be tied on the hat, fixed on the clothes or under the chin, and there is no need to worry about the displacement of the hat.