As stated above there is a lot of perspiration when you are bicycling and a rain jacket made of gore tex or any other breathable material is not enough.

I bought a gore tex jacket more than 10 years ago that is made with mesh in the upper shoulder and upper back areas. There is gore tex material covering this mesh but air can enter under the gore tex through the mesh. Air can also exit out the back through the mesh and under the gore tex. This jacket has an attached hood and I wear it under the helmet. This is the best rain jacket I have ever worn while bicycling and there is no replacement available.