The A3 Performance Women's Phenom Closed Back Tech Suit Swimsuit upgrades your performance to the next level with a data-driven design that's been rigorously tested to enhance the athlete inside the suit. Features FINA approved / World Aquatics approved Data-Driven Design: Every element of Phenom is the result of extensive testing, data collection, and analysis. PHENOM was designed and developed to create the fastest surface in the water of any FINA approved technical racing suit SlipStream®: Phenom's fabric outperforms its competitors with its SlipStream® Water Management Technology - the first ever hydrophilic water treatment technology used in technical racing. SlipStream® works synergistically with the micro-roughness of Phenom's surface to help reduce the friction of the suit and create a boundary layer of water around the suit, the slip layer. This hydrophilic technology is significantly faster when compared to the traditional technology of hydrophobic treatment Bonded Seam Compression: Phenom's elite seaming process controls muscle compression throughout the body without limiting joint and muscle mobility Fabric Channels: Phenom's channeled fabric controls water movement and creates body lift and efficiencies in every stroke. The vertical channels across the body of the suit transfer energy and force from all forward or lateral movement to direct forward movement or propulsion Details Fabric: 55% Polyamide / 45% Elastane Care: Hand wash cold Fit: Competitive Country of Origin: Imported