Shoulder arm cover uniquely designed to provide additional protection for mild temperatures. The fabric is stretchable and consists mostly of polypropylene, dries very fast due to the 3D structure on the back. It feels soft on your skin and the lightweight characteristic material can be used for UV protection. Easy to pack and ideal for mild weather. Can be used for different sport activities such as running, cycling and gym. 100% Made in Italy. One size fits all.