Cold weather doesn't cancel the ride—it just changes the layers. The Attack Thermal Jersey is built for riders who keep moving when the forecast turns. Inside, a thin geometric fleece traps warmth close to the skin while actively pulling sweat to the surface, keeping your core dry through tempo efforts and long, steady miles. The stretch-enhanced fabric moves with you in the drops, while the low-profile cuff and hem reduce bulk when layering under vests or shells. A semi-locking YKK® zipper offers easy on-the-fly venting, and three traditional rear pockets keep essentials close without shifting mid-effort. Recycled materials keep its footprint low, and premium BioViz® reflective elements keep you seen in low light. It's your shoulder season staple and a trusted mid-layer when winter shows up—versatile, breathable, and always in rotation.