Ibera 2 in 1 Bike PakRak Insulated Cooler Trunk Bag, Bicycle Shopping Bag for Grocery, Hand/ Shoulder Bag Smart quick release/clip-on system - Just simply attach and detach bags within few seconds - no straps required! Easy and time saving! Insulated liner - Keeps food and drinks cool or warm. Ideal for grocery, picnics, sporting events. Hard base protects breakables - A durable carbon-patterned ABS base allows the bag to be set down on wet surfaces, protecting the cargo within. Removable, washable bag liner - Don't worry about the stain you get during the groceries. Eco-friendly shopping bag - No more plastic bags! With the hand/ shoulder bag straps, this bag can double as grocery shopping bag.