Flip, Bite, Sip Design: Easy-to-use straw system makes hydration fun and simple for kids Leak-Proof When Closed: Spill-proof valve keeps messes to a minimum during school, sports, and travel Lightweight and Durable: Made with Tritan Renew, a sustainable and impact-resistant plastic Odor and Stain Resistant: Keeps water tasting fresh and bottle looking clean Easy to Carry: Comfortable carry handle sized for small hands and active lifestyles