Windshell fabric is lightweight and keeps the core covered on windy rides;Packable design fits into the included storage bag and folds down smaller than most smartphones;Left side pocket conveniently stores ride essentials;Front and rear shoulder vents provide excellent breathability;Convenient two-way zip allows easy jersey pocket access;Drop-tail design prevents overexposure when in the cycling position;The semi-fitted cut follows the curves of your body with room for movement;