With the holiday season getting near, we were inspired to collaborate with Castelli to create a line of impeccably fitting long sleeve cycling jerseys that would help us show our holiday spirit while out on the bike. The Hanukkah Sweater Jersey was made to pay homage the Festival of Lights, and the dreidels, menorah candles, and Star of David celebrate the holiday in the style of a vintage or, for the less charitable, an ugly holiday sweater that's imbued with all of the functionality of one of our favorite thermal cycling jerseys. Since the Hanukkah Sweater Jersey was built on a platform similar to Castelli's pro level Puro jersey, it feels a lot better during cool weather base mile rides than an itchy holiday sweater would. Thermal fabric on the body blocks icy wind and rain, while the insulating, brushed interior keeps warm air next to your skin. It also works to continuously wick moisture and manage body temperature through steep, slow climbs and wind filled descents alike. Castelli finishes the jersey with the types of purposeful extras you'd expect, including a silicone gripper at the waist, three rear pockets, and an extra zippered rear pocket to provide plenty of room for ride essentials. While Castelli claims this jersey is ideal for 50 degree days with a light chill in the air, we'd combine it with a base layer and wear it on days well into the 40's without concern.