The Michael Phelps Matrix Low Waist Jammer is a top-of-the-line, FINA-approved competitive technology suit created with patented Exo-Core technology. It contains a striped fabric that provides a high level of compression and a progressive stretch in one direction (vertical), thus reducing vibration.

The stretch allows maximum muscle flexibility where it combines 2 types of fabrics, for compression and freedom of movement.

Features:
- Water repellent
- Adapted compression material
- 4-way stretch allows for maximum muscle flexibility
- Improved body position with more horizontal buoyancy using front and rear axle belt, cross coordination to improve body length and position
- Improved overall speed due to reduced drag providing faster swimming times
- Treadmill system with increased horizontal buoyancy