This Tommee Tippee closer to nature bottle comes in easy latch shape with softer silicone teat which gently elongates and flexes during feeding. It’s closer to nature technology insures the mimics a natural breastfeeding action. This Tommee Tippee closer to nature bottle comes in easy latch shape with softer silicone teat which gently elongates and flexes during feeding. It’s closer to nature technology insures the mimics a natural breastfeeding action. It is a super sensitive anti-colic valve with advanced easi-vent technology. The bottles have been designed to be held in the most natural positions during feeding and can be held in 3 ways: cradles comfortably in the hand, gripped in the same way as a traditional wide neck bottle, held from the base; making feeding comfortable for everyone. It helps in reduces risk of baby taking in air. It is totally BPA Free wide neck feeding bottle.