The Phelps Men’s Matrix Jammer features a patented Exo-Core technology. This suit combines 2 kinds of fabrics for compression and freedom of movement. An adapted compression material that provides a high level of compression and one-way progressive stretch and a Jacquard material with 4-way stretch allows for maximum muscle flexibility.
Improved body position with more horizontal buoyancy utilizing front and back axis tape, cross-coordinating to improve length and position of the body
Water Repellent Fabrics
Overall velocity improvement due to less drag = faster swim times