Sugoi Women's Jackie Short Sleeve Top Body 100% Polyester / Mesh Back Top Panel 75% Polyester, 25% Spandex Imported Contoured hemlin gives a smooth drape on the body and prevents rising while running Moisture wicking, antimicrobial fabric for breathability and cooling and UPF 50+ protection Back yoke mesh vents provide increased moisture management Smart seam construction to reduce abrasion during movement Contoured hemline gives a smooth drape on the body and prevents rising while running