Nalgene Tritan 30oz N-Gen BPA-Free Water Bottle BPA free, made using the finest plastics and metals Great for use in both outdoor and indoor activities Great look and innovative carrying solutions for your liquids Slim, graduation profile makes it easy and comfortable to hold. Made from Eastman Tritan copolyester that is manufactured without BPA. Resistant to staining and retaining odor. Detached cap features a handy loop that is easily grabbed by fingers, carabiners, or backpack clips. The cap has a soft touch material for easy gripping.