Energy Accumulator® 4.0: the X-BIONIC® line designed to protect effectively from the cold

26 October 2020

Energy Accumulator® 4.0 is the X-BIONIC® line designed to effectively protect those who practice outdoor sports in winter from the cold.

The functional underwear collection, consisting of sweaters and trousers in the men's and women's versions, is the result of over 20 years of research and development.


The shirt of the Energy Accumulator line is composed of the 3D Bionic Sphere® with ThermoSyphon® technology, positioned on the back and chest, which ensures the maintenance of the body temperature at 37 ° C in all climatic conditions. This way, as soon as sweat begins, the body is refreshed. On the contrary, in moments of rest from physical activity, the insulating effect takes over, allowing the body not to lose heat and guaranteeing a constant thermoregulating action. The thermoregulating effect is also guaranteed by the Sweat Traps® positioned in the areas most subject to sweating such as the armpits. These act by trapping sweat and allowing it to evaporate, thus avoiding the unpleasant formation of droplets that run along the skin during workouts.

Finally, to complement the technologies that make up the garment, the Aircomplex-Zone protects the sensitive area of ​​the solar plexus. Specifically, under the twelfth vertebra of the chest, there are some important nerves that influence the well-being of the whole body, especially while exercising. The Aircomplex-Zone has the important task of protecting the area with special channels that transport sweat to the outside, where it evaporates.

The Air-Conditioning Channel® system dissipates heat and conveys humidity to the outside in order to always keep the ideal temperature under control. Finally, outside the Air-Conditioning Channel®, the Air Guides® act by ensuring the correct evaporation of sweat even in the presence of a second garment.


The pants of the Energy Accumulator line, designed for sports activities in cold weather conditions, are a concentrate of the best technologies patented by X-BIONIC®. The Two-Step Front 3D Bionic Sphere® system with ThermoSyphon® technology, positioned on the front of the pants, allows efficient thermoregulation even in the case of low temperatures.

A fundamental feature of the line is X-BIONIC® Partialkompression®, a technology patented by the brand that redefines new limits of traditional compression. In fact, the revolutionary partial compression has been designed to leave a space of 1mm between the compression zones on the front and back of the thigh. In this way the blood flows correctly and sweat evaporates in contact with the air.

Expansionknee® technology retains its insulating properties even when the knee is bent. The 3D Intercooler construction collects sweat on the upper leg and then allows it to evaporate, thereby cooling this important muscle group.

At the same time, the Intercooler Rib, a wavy structure, provides insulation during the rest and recovery phases, in order to avoid heat loss, which is important for thermoregulation. To complete the features of the line, different technologies support various areas of the leg, ensuring maximum comfort and the same thermoregulating action: the Innerlap Airconditioning Zone® acts on the inner thigh; the ISO-PAD protects the hips from the cold, the ISO-CALFPAD guarantees the maintenance of the ideal temperature on the calves.


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