Castelli Beta RoS JacketThe Castelli Beta RoS jacket is designed for outings during the fall and spring months. Its construction with Polartec NeoShell fabric on the front and sleeves offers windproof and waterproof protection, as well as being highly breathable. CharacteristicPolartec® NeoShell® fabric with two-way stretch, applied to the front and sleeves up to the forearm, is windproof, waterproof and highly breathable Nano Flex Light fabric on the back is highly breathable and protects against wind and wheel splashes The fit is snug and very comfortable thanks to the two-way stretch of all fabrics YKK® Vislon® quick release zipper for easy ventilation control 3 pockets on the back Reflective panel at lower back