BRINGS POWER INTO EVERY'S BODY. Building muscle, losing weight, or improving endurance – with the Powershirt® with EFFEKTOR™ TECHNOLOGIE you’ll begin a new era of performance ability and achieve your fitness goals more quickly. The technology’s advantage: Partial Kompression, which only puts pressure on your muscles through the 1-mm-wide ridges, reducing muscle oscillations, and improves the supply not only of oxygen but also of nutrients to your muscles, enabling quicker recovery. The 3D-BionicSphere® System on the chest and back as well as the AirConditioning Channels promote the evaporation of sweat with better air circulation. This cools your body even during the toughest workouts and hinders early-onset exhaustion.