The Brain Box is constructed with a "hood up" design, allowing you easy access to all of your gear and to the insulated bladder sleeve that can accommodate a 30-50 oz. bladder.
A double zipper on the hood flap for easy access to your stuff. The Brain Box also features a reflective strip on the rear for extra visibility and serves as place to hang a flashing light.
The profile width fits the Euro style seats, but also includes an adapter to fit wide format seats.