WEST BIKING Large Capacity Expandable Bike Rear Seats Bag Multifunctional Bicycle Riding Storage Bag

Features:
Wear-resistant and sturdy Oxford cloth material ensures long-lasting use.
Water-resistant surface keeps your belongings safer and drying.
Large capacity with expandable design allows you to carry more items.
Can be used as a backpack with widened and thickened belts for comfortable carrying and reduced pressure on your back.
Triangular fixation system keeps the bag stable and prevents it from shaking.
Multiple reflective strips ensure safety during night rides.
Convenient front and back pockets for easy take out of your belongings.