X-BIONIC Men Energizer 4.0 Light Singlet T-shirt - Opal Black/Arctic White, 2X-Large

Wear it either on its own or under your shirt. In each case, this pleasantly lightweight layer optimizes your skin-climate management The ThermoSyphon system, the next generation of the legendary 3D Bionic Sphere system supports you on the chest and back It is manufactured by ultra-high-resolution Retina technology. You benefit from high active density, intensive functional transfer and precise separation of functional zones Model Number: NG-YT02S19M