3 different SITIP fabrics, including mesh on side panels and laser-cut stretch fabric on sleeves YKK (R) Vislon (R) zipper with Castelli scorpion zipper pull Mesh silicone waistband with Giro 101 graphic 3 rear pockets with Castelli's drop pocket design Castelli's Maratona fit to cover a wide range of body shapes Weight:103g.