Yoomi teats yoomi teats have been carefully designed to create a more comforting feeding experience. The teats are naturally shaped for easy latch-on and help with combination feeding or transitioning from breast to bottle. Available in super slow (0+) slow (0+ mths), medium (2+ mths) and fast flow (4+ mths). Naturally shaped for easy latch-on. Unique 6 anti-colic vent system for less colic. Bottles, teats and warmers are interchangeable across the range. All yoomi bottles come with a slow flow easy-latch teat as standard.