A PAIR OF INNER LINER LUGGAGE BAGS TO USE With Bumot Defender Evo 41/45 Ltr ALUMINIUM Boxes/Panniers. Reflective piping is used which not only look good but also improve its visibility in the dark. Heavy-duty 600 x 600 Denier Polyester Vinyl Laminated PVC material is used to make these bags durable and sturdy.