It’s the next phase of evolution in uniform shirts and it has developed into a favorite throughout the industry. The UV1 Undervest Shirt is worn under an Elbeco External Vest Carrier. It serves as a functional alternative to traditional uniform shirts while offering a professional appearance and the improved comfort of a performance polo. Visible portions of the UV1 match the look and fabric of Class A shirts and deliver the benefit of Nano Moisture Wicking and Antimicrobial technologies. Additional benefits include the flex underarm mesh vents providing body heat ventilation and increased range of motion, and dual communication wire access openings in side seams that keep wires obscure. Poly Visible Shirt: 100% Textured Stretch Polyester Tropical Weave | 5.5 oz/sq yd. Poly/Wool Visible Shirt: 75% Polyester/25% Worsted Wool/Premium Tropical Weave | 5.5 oz./sq yd Knit Torso: 100% Featherweight Performance Polyester | 4.5 oz/sq yd, Machine Washable