Stainless steel outer and inner walls with twist open lid & loop attachment Features a strainer that can serve as a filter for ice, tea bag, or fruit  Copper-lined & powder coated Double-wall vacuum insulated
• Keeps your drinks hot or cold for hours (keeps cold up to 18 hours and keeps hot more than 8 hours) Sweat-resistant Ships assembled BPA-Free Hand wash recommended Full color imprints are varnish coated for shine and durability