Castelli Perfetto RoS 2 Wind Jersey Men's Savile Blue Variant:Castelli Jersey Perfetto RoS 2 Wind Jersey Savile Blue - L while the Vortex fabric on

while the Vortex fabric on the side panels is dimpled for aerodynamics

The new TWIST bottle with 800 ml capacity for those extra-long rides

Stack height        34mm

Mounts on seat tube with strap (rear)

5 / 3 / 4 / 5 / 6 / 8 / 10 mm Allen bits

Castelli Perfetto RoS 2 Wind Jersey Men's Savile Blue Variant:Castelli Jersey Perfetto RoS 2 Wind Jersey Savile Blue - L while the Vortex fabric onWith just a base layer, this is a wind protection jersey for mild conditions. Alternatively, use it over a jersey like a vest with added protection on your shoulders. Lightweight, breathable front wind protection with allover water repellency. Product features Lightest Castelli short sleeve wind protection GORE TEX INFINIUM WINDSTOPPER 203 Stretch lightweight fabric on front and sleeves Nano Flex Light Woven on back for breathable stretch with good