Main fabric with high Merino wool content has a 3D structure with micro-channels on the inside for more efficient moisture wicking and improved thermoregulation. Perforated material in the sweat zones and under the back pocket is lightweight and allows the body to better wick away moisture. In addition, this material is treated with HeiQ� Fresh� and Smart Temp� technologies to control unwanted odors and to secure the ability to heat or cool according to current conditions. Durability is multiplied by the use of Dyneema� fiber-containing fabric on the back pockets, which is renowned for its immense durability despite its light weight. The jersey features reflective logos, extra-wide recycled silicone tape across the entire bottom hem and a two-way recycled YKK� NATULON� zipper for quick ventilation. 3 spacious back pockets plus one zippered pocket take care of your cargo.