A durable, but soft shirt with a venting back panel making it cooler and drier under a pack. Features: - Short sleeves with UPF 40 protect shoulders from the sun - Flatlock seam construction reduces bulk and chafing - Body-conscious fit, feminine shaping - Highly Breathable Back Panel reduces heat and sweat build-up under a pack - Long-Life Antimicrobial Treatment resists odors even after extended washing - Main Fabric: 92% Polyester / 8% Spandex, Wicking, Antimicrobial, UPF 40 - Panel Fabric: 100% Polyester, Wicking, Antimicrobial, UPF 20 - Alternate images do not reflect actual color