Train at any time of the year! We wanted to create a thermo-active t-shirt that would be perfect for anyone who appreciates training, even if it's cold outside. The SPAIO FIERCE long-sleeved t-shirt was created out of a passion for outdoor sports, which combines the latest technologies and unique design. We used Dryarn fibers that transport excess moisture from the inside to the outside, thanks to which the skin remains dry and is less prone to irritation and abrasions. At the same time, the t-shirt provides adequate thermoregulation and ventilation even during the most active training and regardless of the weather. It perfectly protects you against wind and cold. Thanks to the seamless construction, your movements are more free and you can enjoy the continuous comfort. The great advantage of the FIERCE t-shirt is the three-dimensional flexibility of it, i.e. it allows you to stretch in all directions, choosing the right size, you can be sure that the t-shirt will fit perfectly. The extraordinary comfort of the Thermo products ensures that every training, even during cold days, will be pure pleasure.