the santini karma black jersey 2016 contains side made of fabric kontatto, designed with a polyester fiber very soft and light with special features that transfer moisture and give you better breathability. your back and shoulders are made with tissue cyber-rider, designed to give you the best amplitude movements in areas that have a special comfort and it also contains a thermoregulation. it contains the full length, a triple pocket on the back. features: -lateral kontatto fabrics. -back and shoulders of cyber-rider. -triple back pocket.