These Pure Free water bottles are made from borosilicate glass, rather than the more commonly used, and cheaper to produce, soda-lime glass. Borosilicate glass is stronger, more durable, and offers greater resistance to temperature changes, making it a great choice for portable glass water bottles
The bottles have a thread-less mouth which creates smooth, luxurious drinking. Everything tastes better in glass especially when there are no nasty plastic chemicals leaching into your water!
The coloured, removable, silicone sleeves are added for individuality, added protection and grip. Each bottle comes with a grey silicone lid.