This is the original jacket/ jersey that started an entire new product class: the Gabba. It's a water-resistant short-sleeve jacket that's equally ideal for dry conditions. Made to be worn with Castelli's Nano Flex arm warmers, it allows you to keep your core warm without overheating. GORE-TEX Infinium WindstopperExperience total windproofness and maximum breathability for comfort in cool and windy conditions. The light, breathable membrane blocks the wind while allowing vapors to escape, keeping chill effects to a minimum. An additional layer is available in some GORE-TEX Infinium Windstopper products for more protection and insulation. Durable treatment to the outer layer provides a complete shield against the wind and is highly water resistant.