Long Lasting Insulation: Momcozy Insulated baby bottle bag features double layer insulation, with an XPE insulation layer and a heat-insulating aluminum film. This design ensures that the temperature remains constant, keeping the milk cooler for up to 10 hours. For optimal insulation, pair it with hot or cold ice packs. | Large Capacity: Breastmilk cooler bag size: 25 * 17 * 28 cm, Which fits 6 baby bottles up to 9 ounce. Suitable for most milk bottles and 330 ml beverage cans on the market. PP compartment realize space division and utilization very well. The front pocket can put some useful items, like phones, keys and so on | Detachable Buckle & Shoulder Strap: Our bottle bag is specifically designed for convenient stroller attachment.Simply attach it to your stroller and have easy access to your baby's milk anytime. Additionally, it comes with an adjustable shoulder strap, allowing you to wear it on one shoulder or across the body. | Waterproof & Easy to Clean: Momcozy Breastmilk Cooler Bag is made of ultra-fine twill Oxford cloth, which provides a water-resistant surface. You don't have to worry about rain or milk penetrating the fabric. Additionally, any surface stains can be easily cleaned by gently wiping with a wet wipe. | Multi-Uses: This multi-function bag serves as a breastmilk cooler bag, picnic bag, or drink carrier, catering to different needs and occasions. Great for work, picnics, car trips, camping, or pumping moms. Our milk storage bag perfectly fits most popular brands of milk bottles, including Comotomo, Philips, Evenflo, Dr. Brown, Tommee, Lansinoh, Nuk, etc.