Probably the most tank-like of the bottles we tested, Born Free bottles eschew cutesiness in favor of functionality and durability, and look about as techie as a baby bottle can get. The design features lightly amber-colored plastic with a company logo in shades of blue and a secure white plastic collar. A two-part inner valve and air vent is supposed to help eliminate colic symptoms like gas and spitting up and reduce the rate of middle ear infections. It is also highly effective at preventing leaks, which would make this bottle particularly handy for formula mixing. Born Free bottles can be outfitted with the widest variety of flow-rate nipples in its class, and the same bottles can have the nipple swapped out for an O-ring with handles and one of two sippy spouts, increasing the lifespan of this Brick House of a bottle.
High 
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