img.badge-image{display: block; float:none; margin: 0 auto;} @media only screen and (min-width: 680px) { img.badge-image{float:right; max-width: 35%;} }DUO® is an anti-colic bottle that uses a breakthrough medical glass technology that permanently bonds a micro-thin layer of unbreakable INVINCI-GLASS® to the inside of a premium plastic bottle – resulting in the FIRST HYBRID BABY BOTTLE. It features the best of both, the lightweight durability of plastic on the outside and the protective properties of glass on the inside. It won’t stain, discolor, retain odor or funky aftertastes. Most importantly, your precious milk touches 100% pure INVINCI-GLASS. It’s dishwasher, bottle warmer, and electric sterilizer safe and has minimal parts so you can easily clean your favorite bottle. Award-winning Duo features the exclusive INTUI-LATCH® nipple with a 9 out of 10 acceptance rate, breast-like flow, natural feel, and anti-colic valve. Available in single packs, two-packs, and gift sets.DUO®, the first-of-its-kind hybrid baby bottle, provides the wellness benefits of glass & convenience of plastic in one unique bottle. Duo has glass on the inside for purity and plastic on the outside for convenience. A breakthrough medical glass technology that permanently bonds a micro-thin layer of unbreakable INVINCI-GLASS® to the inside of a premium plastic bottle, making it breakproof yet lightweight Baby’s milk touches 100% INVINCI-GLASS– shields milk from plastic. Won’t shatter, chip, crack, or flake. Laser etched calibrations & decorations for no ink fading or chippingNo nasty smells or aftertaste. Stays clear – won’t stain or discolor. Long-lasting, durable and breakproof. Lightweight and comfortable to hold for both parent and babyAward-winning Duo's Intui-Latch nipple positions baby’s tongue and lips for a natural, intuitive latch. Skin-like texture helps baby stay latched. Anti-Colic valve vents air way from nipple for feeding comfort. Breast like flow is ideal for breast to bottle feedingDishwasher, bottle warmer, and electric sterilizer safe. Easy to use and clean with minimal parts. BPA, BPS, PVC & Phthalate-free. Bottles made in the USABottles come with Stage 1 Slow Flow Nipples (0m+)