Please be sure that shopping button belongs to , do not buy when the shopping button is another follow-up store. Because we can only guarantee the quality of our own products.SPECAILLY DESIGNED & EASE OF USE: One-piece cutting new design without hemming fits your face more comfortably. Easy to use, just tighten the long upper strap on the top of your head, then adjust the short side behind the ear to the back of your head. If it doesn't fit, Velcro can be moved up and down to adjust comfort.SUITABLE FOR MOST PEOPLE NOT FOR EVERYONE: This anti snore chin straps for men women is one size with adjustable double-belt velcro to fit perfectly on your head and have a good chin lift. It fits for most people, but not suitable for people with particularly large or small head.We suggest you choose it if your Head circumference is 53-63cm(20.8-24.8inch). If your head circumference is not suitable, choosing this product may affect the effect of use.RIGHTLY BREATHING WITH YOUR NOSE: This chin strap for cpap users women men helps you to securely hold the chin to keep your mouth closed to get the right habit of breathing with your nose, effectively reduce snoring and improve dry mouth; This chin strap for snoring need to persevere to develop proper breathing habits to reduce snoring.BREATHABLE & COMFORTABLE: This 2 Pack Black& Grey Updated cpap chin straps for men women is made of retractable high quality Lycra material, Odorless/Soft/Comfortable/Non-Irritating. One by one venting holes greatly enhance the breathability of the cpap chin strap for snoring so that it does not make your skin feel stuffy, its light you can hardly feel it on, you cant feel hot even in the summer, let you feel cool and enjoy your comfortable sleep without any burden. SERVICE: Our cpap chin straps for women men provide assurance services, if you are not satisfied with our anti snore strap cpap head strap for snoring, We are ready to offer refunds or replacements at any time, let you shop without worry.