1.KEEP COOL OR WARM EFFECTLLY: Insulated lining can keep bottles cool or warm, will help your food or drinks keep the optimal temperature. Keep the bottle cool for no less than 5 hours. 2.HIGH QUALITY MATERIALS: This bottle cooler bag is made of high quality water-resistant 300D composite oxford fabric, 8mm extra-thick EPE foam and food-grade PEVA, non-toxic and food . Insulated lining can keep bottles cool or warm, it is a perfect breastmilk cooler tote bag for nursing mom. 3.LARGE CAPATICY FIT FOR BABY BOTTLES: The breastmilk cooler bag dimension is :1419cm(5.77.6 inch). It is large enough to carry 2 large 8oz bottles. Perfect cooler bag for transporting breast milk from work to home or leave with daycare. It also can be used as insulated lunch bag, picnic bag, or wine carrier etc. 4.WATERPROOF & LEAKPROOF: fabric is used inside and outside the bag. It is easy to clean the inner, just wipe it off with cloth or paper towel if liquid spills. Composite oxford fabric is resistant to water, dirty and abrasion, protecting items inside. The internal mesh pocket can be used to place ice bags, pacifiers and other small items. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store