· Push AUTOSEAL button for 100% spill-proof one-handed drinking; spout automatically seals when button is released· Double-wall vacuum-insulated stainless steel keeps drinks cold for 24 hours· Spout cover helps to protect against dirt and grime· Button lock ensures the cover doesn’t pop up accidentally· Integrated carry handle makes it more comfortable to take the bottle on the go· Lid is top-rack dishwasher-safe; underside of lid opens up for easy cleaning· Fits most car cup holders