All Nalgene Sustain products are built with Tritan Renew, made from material derived from 50% plastic waste (using ISCC certified mass balance). Same Quality You Know: The Kids On The Fly water bottle features everything that’s made its grown-up version wildly popular including a one-handed opening, leak-proof design, durability, and odor resistance The Perfect Size: This water bottle's 12-ounce size is easy for little hands to hold Great for On-the-Go: Easily attaches to carabiners to hook to their backpack or yours while out and about! For Your Everyday Adventures: This durable water bottle is ther pefect choice for school, camp, hikes, family road trips, and more