Sarasota-based Robrady Design has collaborated with champion swimmer and GMX7 founder David McCagg to create an aquatic resistance training device for swimmers of all levels. The X1-PRO offers bidirectional resistance, allowing swimmers to move freely for up to 50 meters, and instant stroke correction, which forces stroke efficiency. In light of the product's successful collaboration—the X1-PRO is now on the market and endorsed by Olympic swimmer Ryan Lochte—Robrady and GMX7 have decided to formalize their partnership, with Robrady exclusively designing and developing all GMX7 products.