In the competitive world of technical apparel, X-Bionic continues to redefine innovation with its HeatLoop Longsleeve Shirt, a base layer inspired by the warmth-retention strategies of polar bears and the heat-regulating capabilities of termite mounds. The revolutionary design has earned the brand the prestigious ISPO Award 2024, solidifying its position as a leader in functional winter sportswear.

Inspired by nature, perfected by technology

The HeatLoop Longsleeve Shirt employs X-Bionic’s patent-pending HeatLoop technology, which draws inspiration from nature’s most efficient heat-regulation systems. Its design mimics the hollow fur of polar bears to trap warmth and uses integrated air channels, akin to the ventilation systems in termite mounds, to evenly distribute heat. This combination ensures optimal thermoregulation, even in the coldest conditions.

The shirt is constructed using Hygrodiffusor yarn, a blend of hydrophilic and hydrophobic fibres that efficiently wicks moisture away from the skin, preventing heat loss and enhancing wearer comfort. The innovative Santoni seamless TerryLoop technology, a first in the base layer market, ensures a smooth, irritation-free fit, delivering both functionality and luxury for skiers and winter sports enthusiasts.

A revolution in warmth and comfort

“Our goal was to create the warmest base layer on the market using breakthrough technology inspired by nature,” explains Patric Matuszis, Head of Marketing Activation at X-Bionic. “By studying the unique warmth-retention abilities of polar bears and the efficient heat distribution of termite mounds, we developed HeatLoop - a solution designed to optimize performance and keep you warm in any environment.”

The ISPO Award jury praised the product for its cutting-edge innovation, highlighting its advanced thermoregulation capabilities and seamless construction. “X-Bionic’s patent-pending HeatLoop technology sets a new standard for thermal regulation in base layer fabrics. The hydrophobic and hydrophilic yarn combination improves sweat management and insulation,” noted the jury in its official statement.

Key Features of the HeatLoop Longsleeve Shirt

- Exceptional warmth: traps and retains body heat efficiently

- Innovative thermoregulation: ensures consistent temperature control using natural inspiration

- Seamless TerryLoop construction: offers unparalleled comfort and smooth fit

- Moisture-wicking properties: keeps skin dry to enhance insulation

- Eco-conscious design: reflects X-Bionic’s commitment to nature-inspired performance

Game-changer for winter sports

Set to launch in September 2025, the HeatLoop Longsleeve Shirt is poised to be a game-changer for skiers and outdoor enthusiasts seeking a warm, performance-enhancing base layer, X-Bionic says. It’s another example of X-Bionic’s ability to combine cutting-edge technology with nature-inspired ingenuity.

www.x-bionic.com