The Pearl Izumi Interval Thermal Jersey is considered to be their warmest option. The Elite Thermal Fleece is a favorite of cyclists who embrace the challenges of riding and training in cold, wet, and uncomfortable conditions. To do this at a high level one needs the proper thermal protection, which includes rapid moisture transfer. Staying as dry as possible is the key to comfort and keeping warm over the course of a few hour on a winter ride.

Though it is a form fit cut, the jersey offers enough stretch and flexibility for a good baselayer. While the Interval Thermal could be worn as a standalone jersey on cool days, it truly shines as a midlayer between a baselayer and jacket. The designers purposefully built the jersey to be soft on the inside and smooth on the outside for snag-free interaction with the other layers. They also bonded the cuffs to make sure they lay flat to keep the cold air out. A full-length Vision zipper means ventilation requires only one hand.

All the details are here. With the tall soft collar and cuffs you can seal out the cold, or use the zipper to modulate airflow and temperature. You get the pro-style deep, stretchy 3 back pockets system plus an additional single zippered back center pocket for securing valuables. A wide elastic hem carries silicone gripper at the back to hold the jersey in place. Don't worry about visibility when you wear it as you outer piece, as BioViz reflective elements are extremely effective. Return to Top