Norrona Fjora Equaliser Lightweight comfortable long sleeve T-Shirt is made for single-track mountain biking but works great for other activities such as trail running, cross country skiing, and general outdoor endeavors. Norrona Fjora Equaliser Lightweight comfortable long sleeve T-Shirt is made for single-track mountain biking but works great for other activities such as trail running, cross country skiing, and general outdoor endeavors. Norrona uses a high-quality equalizer fabric made with recycled polyester because it provides excellent moisture management and lightweight durability. The fabric is a lightweight 117g/m2 knitted recycled polyester quality that offers great moisture-wicking, is highly breathable, and dries very quickly. It feels soft next to the skin and is suitable as a stand-alone layer during high temperatures or as a baselayer on colder days. In addition, the fabric provides good 50+ UPF protection. The shirt has a regular fit with a Y-cut and articulated arm for optimal mobility down the trails.