The Ortlieb Back-Roller Design QL2.1 is a handy pannier with roll closure. That is why the bag is waterproof and you can cycle through the rain without worry. Use the bicycle bag for groceries, when you go out for a workout or when you have a picnic in the park. Thanks to the Quick-Lock2.1 system, you can easily hang the bag on your bike. Reflectors for extra safety are provided on the Back-Roller Design. The bag consists of one large main compartment, but in the bag you will also find a handy mesh compartment with zipper. Do you make a stopover? You can easily carry the bag on the shoulder strap as a shoulder bag.