The Columbia Zero Rules Light SS Crew Men's T-shirt by the renowned American company Columbia is a cooling technical T-shirt made of lightweight, soft and elastic knit fabric equipped with a sun filter. It uses market-leading cooling technology, which, by reacting with sweat, lowers the temperature of the material and provides a pleasant feeling of coolness during intense effort on hot days. A T-shirt created for all those looking for protection against high temperature, solar radiation and excess moisture. Made of material packed with modern Columbia technology. Unique Omni-Freeze® Zero technology rings lower the temperature of the material under the influence of moisture, bringing relief on hot days. Men's Columbia Zero Rules Light SS Crew T-shirt - advantages: : Omni-Freeze ZERO™ - sweat-activated cooling, Omni-Wick™, Omni-Shade™ with UPF 30 sun protection, Modern classic cut, Comfortable fabric with high elasticity, Antibacterial properties, Center back length: 71 cm Material Fabric: 100% Polyester Dimensions Center back: 27cal / 68.5cm Manufacturer: Columbia Sportswear, USA Omni-Shade® - sun protection Omni-Shade sun protection technology helps protect your skin from harmful UV rays, so you can spend more carefree hours in the sun.Omni-Freeze® – advanced cooling Our heat transfer technology allows the body heat to dissipate, providing significant cooling on hot days, so you can stay outdoors longer. Omni-Wick® – is a new technology that sends moisture away from the body to the outside. Products with Omni-Wick ® perfectly absorb moisture and sweat and then quickly transport it away from the skin, where it quickly evaporates. This process means that the user always has cool and dry clothing.