BAIGIO Bike Pannier Bag Waterproof Bicycle Rear Seat Trunk Panniers Extendable Cycle Storage Pouch with Shoulder Strap…

WATER-RESISTANT — Made from high quality 600D oxford fabric: solid, smooth, waterproof, durable, scratch-proof, etc. The rainproof cover (included) provide further protection for things inside.
EXTENSIBLE CAPACITY: 10 – 25L — Folded Size: 32*17*19cm / 12.6″* 6.7″* 7.5″. 2 extensive side panniers(35*28cm), 1 tail pocket for water bottle, 1 top mesh bag, 1 rubber string, plus height adjuastable top, this bicycle pannier is large enough to place your luggage, bottle, umbrella and raincoat and other necessities.
SAFETY DESIGN — There are multiple reflective tapes around the bag to improve visibility of others when night riding.
MULTIPLE CARRYING METHODS — Comes with a 70-130cm shoulder strap, this bike pack not only can be fastened on the bike rear seat, also can be conveniently carried with your hand or shoulder after parking the bike.
EASY TO USE — There are 2 velcro straps at the bottom of the bag, which will help to fasten the bag and keep it steady from falling down while cycling.