<https://tirthani.com/product/polyset-astro-stainless-steel-water-bottle-700-mlcopper/#product>
<http://schema.org/description>
"DESIGN IN MIND: Double-walled vacuum insulation keeps drinks ice cold for up to 24 hours, or piping hot up to 12 hours. Our innovative technology uses an inner copper lining that prevents the bottle from sweating. Fill up your bottle with your favourite ice cold beverage and feel refreshed all day."
<https://tirthani.com/product/polyset-astro-stainless-steel-water-bottle-700-mlcopper/>