OUR LONG SLEEVE CORE JERSEYS PRODUCED WITH A BRUSHED FLEECE FABRIC ARE SUPER FOR TEMPERATURES AROUND 9/10c TO 13/14c, BUT ALSO UNDERNEATH OUR PREMIUM THERMAL, HYDRA OR STORM RAIN JACKETS AS PART OF YOUR MID-LAYERING SYSTEM ON THOSE COLDER CHILLIER RIDES DURING THE WINTER MONTHS WHEN YOU NEED AN EXTRA LAYER. ALSO VERY POPULAR DURING THE MILD COLD WEATHER WHEN PAIRED WITH A GILET.