Effektor 4.0 Bike Zip shirt. Technologically advanced, equipped with a zip closure. Tight-fitting like the second skin, intelligent system that wicks moisture away, it supports natural process of thermoregulation and prevents the body from fatigue. Compression spheres improve muscles’ performance, reduce vibrations and increase the supply of oxygen and other nutritional substances. Ergonomically designed, padded collar and asymmetric sleeves. Two rear pockets. X-BIONIC Effektor 4.0 Bike Zip shirt EFBT00S19W-y001