As the name implies, Castelli's Rain or Shine (RoS) apparel is made for rides in all conditions, and the RoS 2 Shoecover is here to keep you on the road through sunshine and thunderstorm. The main fabric is windproof and water-resistant, and Polartec fleece lines the front and side panels, keeping your feet warm and dry when conditions are anything less than ideal. The fabric may trap valuable heat, but it remains breathable to prevent the buildup of moisture when conditions are in-fact ideal, making these shoe covers perfect for rides no matter how the skies look beyond your front door. Castelli engineers the RoS 2 Shoecover with contoured seams for comfort about the ankle, and with tall cuffs to seal out water along your lower calf. The water-resistant zipper travels down the length of the booty, and is aided by a pull tab at the heel to make putting on and taking off a breeze. A reflective heal cap boosts visibility to other road users when a sunny afternoon ride becomes a dark and stormy affair.