NWT Lululemon Nulux Long-Sleeve Tennis Dress in Black. Whether you're on a hard court, grass, or clay, this lined tennis dress offers the freedom of movement you need. Weightless coverage Nulux (same as fast and free tights) fabric is four way stretch and sweat wicking. Tank and shorts liner is four-way stretch, sweat-wicking, and quick-drying. Slim Fit: Skims your body. Above the Knee Length with 5” liner inseam length. Dual-entry pocket in the liner holds a tennis ball and your phone. Front zipper for easy on and off. Feel free to ask questions! Bundle to save :)