Speedo Biofuse works with your body to deliver maximum performance and comfort. The human body combines the structural strength of the skeleton with the flexibility of the muscles. The result: more power than the individual parts. This was the inspiration for Biofuse technology, where products work in harmony with the body. The interplay between structure and flexibility results in better performance, comfort and fit. The training aids have been developed so that you can achieve optimal results when swimming. Each training aid is designed for a specific part of the body, so you can focus on improving strength, endurance or muscle tone.