Material: 304 stainless steel

The liner is made of sus304 stainless steel for food contact. This stainless steel does not release harmful substances in contact with water, and at the same time, it gives better thermal insulation performance
Thick Cup Mouth: Thick, sturdy cup mouth made of 304 for food contact
Convenient Lanyard: Designed with silicone material-has elasticity and is not easy to break