These adapters can also be used to attach nipples from most major brands directly to Twist Pouches, for gas-free feeding directly from the pouch. Kiinde Twist Pouches combine the toughness and leak-proof guarantee of a bottle with the cost-effectiveness, compact size, and disposable convenience of a breast milk storage bag. After pumping into Twist Pouches: STORE and organize pouches in the Kiinde Keeper breast milk holder and organizer, THAW and WARM quickly and safely using the Kiinde Kozii breast milk warmer and bottle warmer with steam-free SAFE heat technology, and FEED transfer-free, gas-free, and hassle-free using the Kiinde Squeeze natural feeding bottle with Active Latch nipples.