Rapha Men's Core Jersey Grey White New in its deformation resistant design helps create BX Apparel its deformation resistant design helps create an extremely quiet and smooth braking system even with increasing heat Antares is ready to make history again Care Instructions Core Performance – Designed to set the standard for everyday protection from the elementsFabric – Lightweight polyester that easily packs down into a jersey pocket when not in useVersatile – Two way zipper allows access to pockets while on the moveVisibility – Reflective details for added visibility in low light conditionsFit – Fitted armholes match the contours of your shouldersComfort – Stretch side panels provide a comfortable fit