The Clearly Filtered® 16-Ounce Kids Insulated Stainless Steel Water Bottle with Affinity® Filtration Technology allows you to transform ordinary tap water in a portable junior bottle into clean and safe drinking water by simply sipping through the straw. Wherever the day takes you, you’ll have peace of mind knowing your tap water is free from up to 99.99% of 220+ contaminants. This small bottle is perfect for school, water fountains, parks, restaurants, traveling, and more. 16oz capacity: small size makes it perfect for kids or anyone to carry anywhere First filter included with Affinity Filtration Technology. Double-wall Insulation: keeps water cold for up to 24 hrs.