The bag has a stiffened strucutre, keeping it in its shape. The lid is held shut with a nifty magnetic holder. - 2024 model - Made of the same, fully waterproof PS33 fabric as so many other Ortlieb panniers - QL2.1 mount system: when pulling the top handle, the claw-like upper hooks release and when you let go, they grab your bicycle rack's top bar - A lower hook secures the bag from swinging around - Tool-free adjustment - The hooks are compatible with max. 16 mm rack bars, and a separately available set allows for use of max. 20 mm ones - The bag is delivered with adapters for bars of 8, 10 and 12 mm in diameter - Protection level: IP53: protected against harmful accumulation of dust, protected against rain coming down at an angle of max. 60º - Outer mesh pocket - High quality reflectors - Detachable, padded shoulder strap - Padded computer sleeve - Made in Germany - 5 year guarantee - PVC-free product