The Lifefactory 4 oz. glass baby bottle is the perfect starter bottle.  It comes with a silicone sleeve, polypropylene cap, ring, and stopper, and a Stage 1 (0-3 months) silicone nipple. These are wonderfully easy to clean: the bottle stays inside the silicone sleeve, and goes right in the dishwasher. You'll love these neat little bottles as much as your baby does!
 
As baby grows the Lifefactory 9 oz glass baby bottle is the next step up. The 9 oz. bottle comes with a silicone sleeve, polypropylene cap, ring, stopper, and a Stage 2 (3-6 months) silicone nipple. With the grippy surface of the colorful silicone sleeve, these bottles are easy to grip and easy to love.