“They are great bottles but after 2/3 uses they started to leak. I have followed instructions with how to warm up the milk in the bottle and how to put together the bottle but it still leaks. Its a shame as my wee boy seems better after using the anti-colic bottles but it leaves him soaked after each feed. So i feel like i have wasted my money, now ordered different brand bottles as i cant continue to use DR.BROWN due to leakage.”