Have a long day in the saddle ahead of you? Reach for Castelli's Endurance Jersey FZ! This ingenious dual-layer jersey combines an impossibly thin base layer against your skin so you stay dry and a lightweight stretch outer layer that lets air circulate while you ride. Meanwhile, a full-length zipper gives you even more options to regulate your temperature. The arm and waist bands feature clean-looking sublimated graphics and a soft, stretch fit that keeps the jersey in place while you're on the road. It even features reflective accents to enhance your visibility while you're chasing down that last bit of daylight.