Detachable Insulated Compartment: Change your double baby bottle bag into a wine carrier by removing the insulated compartment. Multi-Uses: They can be used as breastmilk cooler bag or wine carrier, which is ideal for work, picnic, car trip, camping or pumping moms. Multi-Uses: They can be used as breastmilk cooler bag, picnic bag, or wine carrier, which is ideal for work, picnic, car trip, camping, or pumping moms. Full Insulated Waterproof 600D Peva Materials: This insulated baby bottle bag is waterproof, non-toxic, effectively keeps bottles warm or cold and protects your baby’s food. The insulation effect can be doubled when used in conjunction with hot or cold ice packs. Detachable Buckle & Shoulder Strap: The detachable buckle is designed for hanging on a stroller, such as uppababy, baby jogger, Britax, Bugaboo, BOB, Umbrella or Pet Stroller. Perfect For Bottles: The milk storage bag is perfectly stored in most brand milk bottles like Comotomo, Philips, Evenflo, Dr. Brown, Tommee, Lansinoh, Nuk, etc.(Note: If your bottle is higher than 6 inches, please remove the compartment).