Deluxe 600ml borosilicate glass drink bottle which features a protective soft touch silicone sleeve and a secure screw on stainless steel lid that can be laser engraved with a logo. Borosilicate is a lightweight glass that is exceptionally strong and shatter resistant. Glass is a natural choice for a clean, pure taste and it offers a safe and eco-friendly alternative. This product is not intended to be used with carbonated or hot liquids and handwashing is recommended.