For the months of amazing riding between hot and cold weather, Castelli offers the Beta Woman’s Rain or Shine Jacket. Designed with the lightest, stretchiest fabrics made by Castelli, the Beta jacket cuts out most of the wind, shields against light rain while still being highly breathable. All this protection and comfort in a light woman’s jacket that just basically disappears so you don’t really notice it. Performance is designed into every feature of the Beta Jacket. On the front and sleeves the water and windproof Polartec Neoshell fabric has a 4-way-stretch that fits most body types. On the back, the Nano Flex Light woven fabric is highly breathable while protecting from rain drops and chilling wind. The close-to-body design is race aero while the porous fabric wicks sweat in an instant. When extra ventilation is needed, the YKK Vislon zipper opens smoothly. Three rear pockets stay flat against your body when not filled with food. They are also easy to access when you want to reach for some energizing nutrition. Reflective panel at lower back creates visibility when the sun is just rising.