The catch is that one of the side compression straps crosses this zipper, effectively shortening the usable distance of this zipper
That being said, all the tough things you are going to deal with don't even compare to the amazing adventures and all the countries you're going to be able to see
think camera, wallet, notebook and even a small jacket, while the zip-around opening gives you full access to the interior
Manufacturers styles and sizing are different, so the best way to find a helmet that fits you well is to go to a store and try a variety of brands, models, and sizes
For city riding, lightweight mesh jackets, short-cuff gloves, and ventilated shoes work great