Leak-proof cap for thermos bottles. The Sigg H&C Top cap is the perfect replacement for all Sigg H&C thermos bottles with a capacity of 0.75 and 1 liter. It impresses with its simple design. The practical screw cap ensures that the drinking bottle is leak-proof at all times. Additionally, the thermos bottle can be easily held and carried thanks to the handy design of the lid. The screw cap contains no harmful substances, including phthalates or estrogen-active substances.