Showers Pass Helmet Cover
The Showers Pass Helmet Cover keeps the elements on the outside of your helmet where they belong. It's waterproof and breathable with taped seams, and it even boasts a removable gaiter to channel water away from your collar. It also has drawcords to customize the fit plus reflective details and a light loop for safety.
Features & Info
Also available in Neon Yellow (image unavailable from manufacturer).
One size fits most.