Riding throughout the year requires a certain amount of gear and a great long sleeve jersey with the right properties and features can be used as a standalone garment on cool days which can be buttressed by a light jacket, or used as a true midlayer when two or three clothing layers are required. Thus a thermal jersey can be a key component to winter riding, and the RBX Expert Thermal LS Jersey is no exception. With special Thermal fabric and side stretch panels, it's not only extremely warm, but also lightweight, stretchy, and downright comfy.

The details are all here. Thermal delivers a breathable textile platform that has a soft inner face for comfort and easy glide over other layers, traps some heat while releasing excess moisture, and works well with shells and other jacket types. The cut is form-fitting- not loose or baggy, but the stretch afforded by the two fabrics really does allow the piece to work with more body types than a true race cut. Keep in mind that Specialized's clothing is more of a Euro cut and sizing runs smallish, so if you are in the upper half of a size range, we recommend going up a size.

Everything, from the deep pockets, long pull-rubber end zipper, cyclists cut (short in front/long in the back) and the hem gripper, raglan sleeve-shoulder design, and the cuffs have all been thoroughly considered and properly executed. There are reflective details on the vertical sides of the rear 3-pocket system as well as on the back of the sleeves. Even the crew height collar is perfect, as it gives you more coverage when worn alone but also won't interfere with a jacket collar, balaclava or neck gaiter. In other words, the RBX Expert Thermal Jersey is a must-have, nine-month garment for your closet- making it a great value.