Gravity Defyer are a shoes manufacturer that introduced their shoes in the year of 2008, featuring a spring mechanism as part of the sole to enhance shock absorption. They were originally known for their distinctive logo that had a design reminiscent of sperm. This brand produces a diverse selection of athletic shoes, everyday shoes, and formal footwear. https://thefootwears.com/the-ftc-complaint-against-the-gravity-defyer-footwear/