This is a Sun Barrier 100 Wing Hat. I purchased it from the official website for this summer, but due to childbirth, I haven't used it and have kept it in the white cover it came with. I'm selling it because I don't think I'll be using it in the future. (The tag has been removed) I only tried it on once at home and haven't used it outside. I will fold it up compactly for shipping. The following is quoted from the official website: A completely blackout hat with a brim that is less likely to be blown by the wind and a removable hat strap. Recommended for windy days, when playing outdoors, etc. It's also functional, compact, and designed with a simple design to match various outfits. Uses fabric that cuts 100% of UV rays, 100% of infrared rays, and 100% of visible light. - Color: Black - Size: L (Head circumference approx. 60cm)