The Women’s Powerskin R-Evo+ Open Water Closed Back technical full-body swimsuit for open water racing that improves body alignment and stability Made of high-tech Z-Raptor+ fabric that combines optimal muscle compression and unrivalled comfort Powerskin® R-EVO+OW is constructed with low-profile bonded seams for reduced drag and second skin feel Closed-back design with racerback style straps for optimal upper-body support