100% Polyester. Lightweight and breathable mesh structure. Reflective strips (5 cm wide) on the body and shoulder. Front zipper. Features several very practical pockets and an ultra-practical radio loop: pocket for a mobile phone or walkie-talkie on the heart side, two flap pockets at the lower part of the garment with double access from the top and side, pen pockets, and key holder, transparent chest pocket for ID on the right side. Complies with the EN ISO20471:2013 standard for categories 1 and 2.