BETA RoS W JACKET As summer turns to fall, we still have a few months of amazing driving, but when we have to start dressing warmer, we lack the freedom to wear just one jersey. That's why Castelli made this jacket. Castelli used the lightest, most stretchy fabrics to make a jacket that cuts most of the wind, remains highly breathable, offers remarkably high levels of water protection, and virtually disappears so you don't really notice it. . This thin wind and splash barrier offers surprising warmth while being so light and stretchy you'll barely notice it. Race fit for performance on fast fall and spring rides on any terrain. Details: 4-way-stretch Polartec® NeoShell® fabric on the front and upper sleeves is windproof, waterproof and highly breathable Nano Flex Light woven fabric on the back is highly breathable while blocking out wind and splashes from light rain or wet roads The cut close to the body remains very comfortable thanks to the 4-way stretch of all fabrics YKK® Vislon® zipper is easy to slip on for quick ventilation control Reflective panel at lower back 3 back pockets