The Sabelt UI500 Balaclava consists of Lenzing Fire Resistant fiber, which is made of a natural raw material, and keeps the body cool and dry. The use of modacrylic and elasthane, which make the garments highly stretchable, make this line the most convenient and innovative line of fire resistant underwear.

The composition of the new UI500 underwear line makes the clothing light, resistant, and very comfortable. The two-way stretch warp-knit seamless fabric has a high wear resistance and is very light.