SwaddleDesigns appears to be a legitimate company that sells baby products. It has a presence on Amazon where customers have left reviews for their products. Some customers have praised the design and functionality of the swaddles, stating that they are easy to use and keep the baby snug and secure. However, some customers have reported that the material does not wash very well and can pill after repeated washing. It's always recommended to do thorough research and read multiple reviews before making a purchase.