The Rapha Core vest has a lightweight outer layer that easily fits into the jersey pocket.Features:- Performance Core - Designed to set the standard in everyday weather protection- Fabric - Made from lightweight polyester that easily packs into a jersey pocket when not in use- Versatility - Equipped with a two-way zipper that allows access to pockets while on the move- Visibility - Reflective details increase visibility in low light conditions- Fit - Tight-fitting sleeves that contour to the shoulders- Comfort - Elastic side panels provide a comfortable fit- Recommended for cool climates- Reflective details for increased visibility- Lightweight and foldable- Two-way zipper- Partially elasticated rear hem- PFC-free DWR on the main body