When a human body reaches 19 mph, the medium it’s moving through fights back, creating drag and reducing efficiency. That’s why PROJECT SWIFT was created—to maximize performance and minimize the forces that work against you. Nike researchers and product designers teamed up with an elite group of swim coaches, submarine designers, and sports aerodynamicists to study the way water interacts with the human form. Combining years of research, rigorous testing, and feedback from top athletes, Nike’s streamlined suits glide through the water in perfect harmony with a swimmer’s motion. Every fabric and seam placement is scientifically chosen—and proven—to enhance your speed.