Deluxe 600ml borosilicate glass drink bottle which features an insulating soft neoprene sleeve that helps to keep drinks cool. The sleeve is nicely accented with grey neoprene trim and a grey woven polyester handle. It has a secure screw on stainless steel lid which 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. It is not dishwasher safe and handwashing is recommended.