Wilson Ultimate Duo contains: Luxilon Alu Power 16L
and Wilson NXT Tour 16G
Polyester Hybrids. Boasting amazing durability, coupled with optimal power and control, Wilson's ultimate duo of the world's best monofilament with the worlds best multifilament is the greatest hybrid yet.
Luxilon Alu Power: A playable string designed for players who want more durability with amazing power and control.
Wilson NXT Tour: Wilson NXT Tour offers the softest feel and highest performance. With its gut-like playability and awesome durability, NXT Tour delivers the maximum performance demanded by players everywhere.