Lovely way to stay warm on those not so lovely days. From POC:
The Essential Road Thermal Sleeves are made from a lightweight and flexible power stretch fabric. The sleeves are an ideal complement to mixed weather conditions and feature a brushed interior which will keep you warm and comfortable. The sleeves are designed with an ergonomic pre-bent shape, which provides a precise and close fit, and an elastic retainer at the top of the sleeves ensure a secure fit. To improve visibility a reflective logo has also been included on the sleeves. The sleeves are easily removable and stowable for functionality.