The castelli transparent due ls windproof jacket the trasparente is lightweight and fits like a jersey yet keeps the wind off the front with its windstopperreg x lite plus fabric giving it a an extremely wide temperature range the second generation trasparente now features splash protection on the back improved fit and better wind protection on the arms castelli transparent due ls windproof jacket features windstopperreg x lite stretch fabric on front is windproof and splash r