They offer plenty of space for a rain jacket, tools or provisions. Comfortable bag of the Contour series. The longer shape offers particularly good splash protection. The underside is therefore made of washable material.KlickFix Contour Adapter (included in delivery)The compact inconspicuous adapter for mounting on all standard seat posts. This allows a bag to be quickly and securely attached to bicycles without a luggage carrier. The release button is located on the respective pocket clip. This makes the adapter very inconspicuous when driving without a bag. KlickFix advises against the use of carbon or other lightweight seat posts or recommends the advice of the manufacturer.