Yes, all YETI drinkware and accessories are BPA free – Always have been, always will be. In fact, all YETI products including the Hopper, Tundra, LoadOut Bucket, and Panga Duffel families are BPA free as well. Your YETI provides endless opportunities for outdoor adventure. The YETI Rambler family of drinkware is strong. Sure-handed. Sleek. And safe. That's because every Rambler™ we make is BPA-free from bottom to lid. BPA is the more common name for Bisphenol A, a chemical compound linked to a variety of health issues and diseases. BPA is used in a variety of plastics - but not the YETI Rambler™. All YETI drinkware is BPA-free, including Triple-Haul caps, MagSlider lids, and accessories. We think what goes inside our Ramblers™ is just as important as how it performs outside. With YETI, you get the freedom to go anywhere with on-hand hydration combined with BPA-free peace of mind.