thinkbaby raises the stakes on both health and design. These bottles are completely free from Bisphenol-A (BPA), PVC, phthalates, nitrosamines, and lead, helping to minimize the health considerations of plastic. We also love their colic-minimizing nipple ventilation system and no-spill travel cap -- not to mention their great look! (Set includes two 5-ounce bottles, two slow-flow cross-cut nipples, and two travel caps.)