Rear pannier (single bag) with roll closure; Quick-Lock2.1 system for rack tubes up to 16 mm, PVC-coated polyester fabric; large reflectors; separately available accessories: Pannier Stabilizing Insert (F3911), Packing Cubes/Pannier Commuting Insert; Carrying System Bike Pannier (F35); Anti-theft device (E125); QL2.1 hook 18 mm (E211) & 20 mm (E193), shoulder strap (E172).