The X- Bionic Merino longsleeve is a thermal underwear dedicated to those who appreciate natural materials and their properties. Saxon merino wool, from which the jersey is made, helps to maintain the optimum body temperature (cools or warms depending on the need) and is a quick-drying material, which, combined with the intelligent solutions known from X-Bionic products, creates underwear perfect for sports in low temperatures.

Products of the Merino line are characterised by low compression, but offer a wide range of movement and extremely pleasant, gentle warmth - indispensable when practising sports in extremely cold temperatures.

The jersey features revolutionary zonal compression and the patented 3D Bionic Sphere® system with ThermoSyphon® technology to optimise performance through improved cooling. The Sweat Traps® system captures perspiration and promotes temperature balance through targeted evaporation. The AIR-CONDITIONING CHANNEL® 4.0 system provides intensive body ventilation and wicks moisture to the outside.

Sleeves and hem of the jersey finished with Aktiv-Bund tape keep the underwear in place, guaranteeing a perfect fit without slippage. The ribbed structure on the shoulders improves neuromuscular reaction time, providing balance and stability to the body. The Expansion Ribs® technology located at the elbows, which works on the accordion principle, ensures full insulation from the cold of this sensitive part of the body, even during strong flexion.

The jersey perfectly manages odours thanks to SKIN NODOR® fibres, which prevent the proliferation of bacteria by releasing skin-neutral ions. The new product generation X-Bionic 4.0 is the first to offer the ultra-high quality of Retina® - an exceptionally tight knit fabric in which thermoregulatory zones can operate with the utmost precision.

Through the use of multiple technologies, body temperature is maintained at an optimal 37°C and muscles are supported and ready for superhuman effort. Men's grey thermoactive longsleeve X-Bionic Merino clwt06w23m-b080