Boon Nursh Silicone Baby Bottle Pouch are the part of a revolutionary nurse bottle, features a 100% silicone pouch that collapses as your little one drinks, without allowing gas-inducing air back in. Say goodbye to complicated valves and vents-and hello to innovation. These pouches are made without the use of toxins like BPA and PVC. Boon is a leading innovator, designer and manufacturer of infant and baby products. They are driven by a strong desire to create modern products that help to simplify parent’s lives while retaining their personal style. Boon is committed to creating nothing but the most innovative gear—and keeping it affordable. Their design studio is always in motion, tackling one parenting challenge after another. All their products adhere to the highest manufacturing standards and are BPA-free, PVC-free and Phthalate-free, which means no nasty toxins for your kids.