Winter riding kit choices get a bit more complicated than the usual summer routine of finding the closest clean bibs and jersey to head out the door, but Castelli looks to simplify the process with its Men's Puro 2 Men's Jersey. With thermal fabrics and reflective detailing, this jersey is a go-to piece for chilly-weather rides. The secret to the jersey's protective qualities lies in Castelli's use of Warmer fabric for the main body and Warmer X-Stretch for the side panels and sleeves. Warmer places equal emphasis on insulation and breathability, because evacuating sweat and water vapor from a cyclist's microclimate is as important to staying warm as trapping body heat. Warmer X-Stretch is a more elastic version that fits tighter under and across the arms, eliminating flapping caused by excess material to maintain the Puro's race-worthy fit. Though Castelli claims that this jersey provides ideal warmth for temperatures ranging from 55-68 degrees, we'd happily pair it with a base layer well under those temperatures without any concerns. For finishing touches, Castelli adds an elastic gripper at the waist and three rear pockets with enough space to carry snacks and other small essentials along for the ride.

• Material: [face fabric] Warmer (100% polyester), [sleeves] Warmer X-Stretch
• Fit: regular
• Zip: full-length
• Season: winter
• Pockets: 3 rear

Material: [face fabric] Warmer (100% polyester), [sleeves] Warmer X-StretchCastelli