The Pearl Izumi Women's Elite Thermal Arm Warmers will be your best friends on long rides in cool weather. But why would you opt for arm warmers instead of a long-sleeve jersey Because you can easily slide them off and pack them into a jersey pocket when the sun comes out -- or vice-versa -- take them out after a long climb before you begin a chilly descent. Pearl's warm, wind-resistant Elite Thermal material will make them as important to your ride as they are convenient.