Castelli Giubbino Go Jacket Giallo/Grigio Sizes:XL The back is made of

The back is made of windproof and water-repellent material

55mm Offset

Hubs equipped with USB™ ceramic bearings (Ultra Smooth Bearings) raise the level of wheel smoothness even further and reduce weight and maintenance

Wet lubricant based on transparent PTFE eliminates prolonged friction

Extreme Fluoride

Castelli Giubbino Go Jacket Giallo/Grigio Sizes:XL The back is made ofGO JACKET If you are looking for a jacket suitable for all situations, you are in the right place. We used our lightest three layer stretch fabric, the GORE TEX INFINIUM WINDSTOPPER, which makes this jacket suitable for mild conditions. Its elasticity gives the jacket an excellent fit. This is the same outer fabric used for our Alpha RoS 2 Jacket, which Cyclingnews. com called "the benchmark for performance that the best winter jacket should offer".