Protect-a-Bub sunshades do exactly that. These sunshade are made of breathable fabric and are so simple to attach to your stroller. When I took mine out of the package, I was expecting to see detailed instructions but there were none. That's when I realized that all I had to do was place it over my own stroller shade, tie it on and it's ready to go! It also comes with a cute storage bag for when it's not in use. My son loved being under the shade ( I think he thought it was like a tent). He was all smiles as we went for a walk and not one speck of sunshine reached his little face.
Want one? Visit Protect-a-Bub and check out all the products they offer. You can enter discount code protect4spring for a 10% discount on any order from their site.