【Size】: 12.2 inches long, 7.87 inches wide, and 16.5 inches high (of which the bottom removable cooler compartment is 4.3 inches high). 【Material】: Made of water-resistant and wear-resistant nylon, lined with padded sponge and full-coverage wipeable material. Protects the breast pump and accessories while making it easy to clean. 【Removable Cooler Compartment】: This breast pump bag has a removable cooler compartment at the bottom for storing bottles, and also comes with 2 blue coolers to ensure low temperature storage. The removable compartment comes with a carrying handle at the top, so you can carry the top or bottom compartment separately according to your usage needs. 【Well-designed】: Adjustable shoulder straps are designed with breathable mesh wrapped around a sponge layer, ergonomically designed to help relieve shoulder pressure and make it more comfortable to use. The breast pump backpack is designed with a stylish look and can store breast pumps and accessories, and can also be used as a daily diaper bag or lunch bag. 【Multifunctional】: The reinforced top carry handle provides more options for you to carry your backpack at work, traveling or business trips. The bag is made with additional pockets of various sizes to meet daily needs, which can store tissues, cell phones, keys and so on. Made of nylon, lined with padded sponge and full-coverage wipeable material for easy cleaning while protecting the breast pump and accessories. Breathable shoulder straps contain a foam layer to help relieve pressure on the shoulders for more comfortable use. The reinforced top carry handle easily converts the backpack into a tote. This backpack has a removable cooler at the bottom along with 2 blue coolers to ensure bottles are stored at low temperatures and also works well to keep food fresh when used as a lunch bag.