Deuter Cabezon SB 16

"The Cabezon SB 16 from Deuter is the ideal companion for all cycling enthusiasts, whether for mountain biking, road cycling or a relaxed bike tour. This innovative, two-part backpack offers a total volume of 16 liters and is specially designed for cycling. The combination of saddle bag and pannier allows flexible and secure attachment to saddle rails and seat posts, while reflective elements ensure additional safety in poor light conditions"
"Thanks to its waterproof design with IPX4 certification, the Cabezon SB 16 protects your equipment even in rainy weather. The packsack has a practical roll-top that can be attached to the saddlebag using robust straps with buckles. An elastic compression strap and material loops on the top of the saddle bag offer additional fastening options, while the reinforced base area ensures stability."
"A special highlight is the compression valve, which enables space-saving stowage. The harness straps can be flexibly adjusted thanks to the Velcro fastener and buckles and are also suitable for carbonriders. So you can be sure that the Cabezon SB 16 will stay securely attached to your bike even on demanding tours"