Ribcap appears to be a legitimate company that offers a range of protective headwear. Their products are designed to look like regular hats but feature hidden inner protectors made of flexible viscoelastic to shield the head from injury. They have received positive reviews from customers, with many praising the comfort and style of the products. However, some customers have noted that the back of the cap has an unprotected cutout. It's always recommended to do thorough research and read reviews before making a purchase.