Engineered for high intensity year round activities, Ventilator is a unique two sided fabric with horizontal venting channels which pushes excess heat and moisture to the surface allowing for quick cooling evaporation while providing sun production. The new Ventilator fabric is the lightest and most packable shirt available, offering breathability, lightweight feeling, and UPF protection. From working out to climbing mountains, this shirt has been fabricated to not only be dependable but extremely comfortable. ClimaSense Thermoregulation Technology Engineered to adjust to your body temperature Inhibits the growth of bacteria that causes odor Fast wicking and drying Features: Designed with venting channels for moisture transport. Rolled forward shoulder seam for smooth Terramar Sports ClimaSense technology is engineered to recognize an individual's need to warm up or cool down. When you are cold the fiber structure reacts by contracting to trap air and create heat. The result is a perfect "inner climate" balance to keep you comfortable in all conditions. The Ventilator fabric is the perfect year round fabric, great for all sports ranging from bike riding, hiking, soccer, working out, baseball, football, running, golf, skiing, snowboarding and much more! Functional thumbholes. Technologies: Thermoregulation Moisture Management Breathable Plant Based Odor Control UPF Protection 4-Way Stretch Fabric Composition And Care: 47% Recycled Polyester / 47% Cationic Polyester / 6% Spandex Machine Wash Cold. Dark Colors Separately. Tumble Dry Low. Do not Iron/Steam or Dry Clean. No Fabric Softener or Dryer Sheets. Terramar Women's Ventilator Hoodie Performance Tee