This jacket has been designed with the participation of active athletes and is designed for the paraglider pilots and other disciplines in which the movement activity is relatively low, but atmospheric conditions challenging. This situation makes our body, generate less heat and there is a need to accumulate it. In the #Keepwarm series, we have applied an innovative solution, increasing heat accumulation. Extreme temperature maintenance is ensured by the silicone fibers that the jacket is filled with. Difficult conditions, require solutions refined by specialists. TryFly Air Sports Wear gives you a tested and reliable product. The thermal properties  are best suited for temperatures below -20 ° C but the comfort of use is also maintained at temperatures up to + 7 ° C.