- EFFECTIVE TEMPERATURE CONTROL: Our insulated lining keeps bottles cool for up to 5 hours or warm as needed, ensuring your food and drinks maintain their optimal temperature throughout the day. - PREMIUM MATERIALS: Crafted from high-quality, water-resistant 300D composite oxford fabric, this cooler bag features 8mm extra-thick EPE foam and food-grade PEVA. Non-toxic materials make it a safe choice for transporting breast milk, catering to the needs of nursing mothers. - SPACIOUS DESIGN FOR BABY BOTTLES: Measuring 14 x 19 cm (5.7 x 7.6 inches), this breastmilk cooler bag is designed to comfortably hold two large 8oz bottles. Ideal for transporting breast milk from work to home or leaving it with daycare, it also serves as a versatile insulated lunch bag, picnic bag, or wine carrier. - WATERPROOF AND LEAKPROOF: The bag's fabric is designed for easy cleaning; simply wipe the interior with a cloth or paper towel in case of spills. The composite oxford fabric resists water, dirt, and abrasion, ensuring your items are well-protected. An internal mesh pocket provides convenient storage for ice packs, pacifiers, and other small essentials. - VERSATILE USES: Perfect for nursing moms on the go, this cooler bag can be utilized for daily commutes, picnics, or outings with friends, making it a practical addition to your lifestyle. Whether transporting breast milk or enjoying a day at the park, it meets your cooling needs effectively.