This wearable breast pump bag measures 11.4 x 6.3 x 8.3 inches and is sized to carry an M5 or M6 pump along with a full pumping kit. Three internal pockets and three external pockets keep pumps, bottles, wipes, and chargers organized instead of loose at the bottom of a tote. It holds up to three 9 oz bottles, each about 5.91 inches tall, so a full pumping session fits without a second bag. Two foil-lined pockets and a waterproof bottom work with the included ice packs to keep milk cool for up to 4 hours, which matters for anyone pumping at the office or while traveling. A waterproof mat is included for setting pump parts down on shared counters or changing tables, and the fabric wipes clean quickly. At 1.21 lbs, the bag is light enough to carry all day inside a larger tote or on its own for work, travel, or family outings.