AlpinTec bottles are made from durable, ecological and safe materials. Made with new generation Tritan co-polyester, AlpinTec's bottles is safe to use. In contrast to the plastic materials used in conventional pacifiers, the Tritan material is free of bisphenol A (BPA), bisphenol S (BPS), estrogenic activity (EA) and androgenic activity (AA). Most users are unaware of the damage these chemicals cause to the body. For more information, read the related article. Our bottles are extremely durable, and are not in danger of shattering after a fall. AlpinTec bottles are suitable for hot and cold drinks from -10°C to 96°C. So whether you prefer cold water or hot tea, they are perfect for you. Hand washing is recommended, their design is such that it makes the process much easier compared to other bottles.