Ortlieb Vario QL23 waterproof backpack

As its name reveals, Vario is a flexible miracle of space that can be quickly converted from a convenient bike pannier into a comfortable backpack.
The waterproof Vario is made of tear and abrasion resistant nylon fabric and features a handy roll closure.
It offers space for DIN A4 files and a 15.4” laptop.
The padded carrying system with shoulder straps and adjustable sternum strap can be easily stowed away in the front pocket, and quickly and easily fixed to the rear if needed.
A bike helmet can be fixed to the mounting provided on the pack.

QL3 system for mounting to the rack.