Back-Roller Core 20L Red/Black

The Back-Roller Core 20L Red - Black is a bicycle bag from Ortlieb.

Fitted with the Quick-Lock 2.1 system, this robust, waterproof bag can be quickly attached to and detached from your bike's luggage rack. It adapts to all pipe diameters up to 16mm, and it comes with reducers. For 18mm, 20mm etc. tubes, however, you will need to buy the hooks separately.

With its 20-litre storage capacity, high-quality materials and adjustable roll-up closure, you can keep all your gear protected from water and dust, whatever the weather and whatever the terrain.

What's more, if you want to make it even more practical than it already is, you can get the shoulder strap to carry it easily from your bike to your workplace...