Stylish 500ml double wall, vacuum insulated stainless steel drink bottle with a gently curving design that is extremely comfortable to hold. It offers exceptional performance and will keep drinks cold for 24 hours or hot for up to 12 hours. Zircon has a secure screw on stainless steel lid and is presented in a black gift box. It laser engraves to a stainless steel finish and is BPA free. Handwashing is recommended.