I have 2x Castelli Trasparente that use Gore windstopper X-Lite in the front and shoulders, and a permeable fleece material on arms and back. You can blow through the back easily, the front with difficulty. Their famous Gabba jersey is windstopper front and back, which would help if it's raining or you have a harsh tailwind.


Trasparente falls between a long sleeve jersey and jacket, fine up to ~60F by itself and ok down to 30F with a good baselayer. highly recommended!