The ortlieb back roller high visibility pannier high visibility on the road is critical to ensure that you will be safely seen ortlieb offers highly reflective solutions in the range of waterproof bike panniers the high visibility line the pu laminated cordura fabric in black and radiant fluorescent signal yellow is interwoven with highly luminous reflective yarn in the dark the complete bag is rendered into a reflector a trip at night is now safer as the fabric enhances your v