Long before synthetic shoe covers became the norm, feet still got cold. In Belgium, riders often took old wool socks, cut holes in the bottom, and used them as shoe covers. And while there's nothing wrong with wool, Castelli's Belgian Bootie 3 Shoe Covers update the classic so that even your non Belgian feet will stay toasty. Constructed using 100% polypropylene for increased durability and easy cleaning, the Belgian Bootie 3 features a double layer knit on the foot of the bootie to provide better protection. The booties are also cut high enough to cover the cuff of a 9cm sock and offer two silver bands of reflective threads for increased visibility. Perhaps more importantly, the Belgian Bootie 3 comes pre cut for your cleats, meaning you'll avoid the rips and tears associated with homemade versions. The Castelli Belgian Bootie 3 comes in Black or White and in three sizes SmallMedium, LargeX Large, and XX Large. Be sure to check the sizing chart to ensure proper fit.