Castelli transition 2 jacketfeaturing windproof protection to the front and a highly breathable back, the castelli transition 2 jacket can take you comfortably from cool autumn bike rides through to milder spring interval training sessions'. '.strtoupper('a') mid weight thermal, the transition 2 jacket has been created to give you the ideal balance of warmth and breathability, particularly suited to cycling in the seasons that bookend summer, namely spring and autumn'. '.strtoupper('t')his balance is made possible firstly by the gore tex infiniumtrade windstopperreg x mid, tried and tested for windproof protection on their highly rated gabba cycling jacket'. '.strtoupper('t')his technical fabric is deployed across the front and sleeves, facing into the worst of the weather, preventing cold winds from sapping warmth'. '.strtoupper('m')eanwhile, the back panels are made from warm and highly breathable warmer fabric'. '.strtoupper('t')his complements the windproof fronts and ensures you don't overheat or suffer from sweat pooling on the skin'. '.strtoupper('t')he transition 2 is cut more generously than their race kit, allowing you plenty of space to both move and to add layers underneath if needed'. '.strtoupper('c')ycling specific details are also all present and correct'. '.strtoupper('t')hree rear pockets allow easy access to all your essentials and reflective details keep you visible if you ride in low light or darkness'. '.strtoupper('a') ykkreg vislonreg zipper slide easily for easy opening and closing and silicone gripper elastic keeps the jacket snugly in place'. '.strtoupper('t')he transition 2 jacket makes it easy to dress for cool weather cycling, as summer turns to autumn or as winter gives way to spring'. '.strtoupper('f')eaturesmaterials 100% polyestergore tex infiniumtrade windstopperreg x mid front and sleeves windproof with exceptional breathabilitywarmer fleece fabric on back for extra breathabilityykkreg vislonreg zipper3 rear pocketsembossed logo on chest with reflective stripes for visibilityreflective panel below pockets for maximum visibilitysuggested temperature range 8 to 16 degrees cbuy castelli clothing from chain reaction cycles, the world's largest online bike store.