This new style hopper backpack cooler has a large size (20L)to hold all things you need when going out. The high-density fabric is waterproof and resistant to mildew, punctures, and UV rays. With new technology, keeping your ice and drink maintain cold for 48-72 hours. RF welded seams eliminate stitching and provide a leakproof interior liner. 16" H x 8.7" W x 15" L