ADJUSTABLE: One size fits most. if you feel the hat size is so big, just use the hat size reducer -adjustable cord inside the sweatband, ensure the best fit..SUPER SUN PROTECTION: Sun ultraviolet ray will do harm to your skin, makes dark spots and accelerate aging. This sun hat has UV protection, can protect you from the sun, help protecting from the hot sunshine, keep cool!.LIGHT& FOLDABLE: very compact while folded up, perfect accessory to take to a trip. Environmental protection and skin-friendly lightweight, soft touch and breathable, moisture wicking fabric and mesh design can promote cooling and sweat..GREAT LOOK: Bowknot sun protection summer sun hats, make you more charming and adorable in summer! Great for beach, boating, vacation, park or pool, fishing, hiking, camping, gardening, tourism, weekend getaway, honeymoon or any other outdoor activities. you will received lot of compliments..WARM CUSTOMER SERVICE: 100% quality and customer satisfaction guarantee. TOTALLY RISK FREE. Buy with confidence now.