The Lily The Lamb Tritan Flip & Sip is a sleek crystal-clear drink container made from high-quality Tritan. Impervious to odors and stains, shatter and scratch-resistant, and see-through for the eager child who wants to know what’s inside. Each Clear Tritan Flip & Sip features contrasting cap colors, a carabiner for easy attaching to a back pack, a soft silicone drinking spout and an extra straw inside.Recommended for children 3+ years.