Patented, Leak-proof screw-on lid with visual open/close push button locking closure, Lid comes apart for easy cleaning, Stainless Steel body with silicone band accent, Lip groove allows for drinking spout to be positioned without even looking, Available in 16 different colors, 18-8 dual wall Stainless Steel with Copper-lined deep draw liner, Vacuum insulation provides 9X heat retention,