Materials: Insulated water bottle uses 304 stainless steel for the inner tank, 100 %seal, BPA, and can be reused for water bottles for a better drinking experience. Silicone sealing ring, you can easily screw your bags to keep your backpacks completely dry. Long insulation: Our strong and light vacuum flashes adopts dual -layer vacuum insulation technology, these flashes keep the liquids for 8 hours and 12 hours cold. The base of the water bottle is designed with silicone material that can make the water bottle more stable. Small and portable: The small body has a capacity of 300 ml, when you put it in the bag, it does not leak or not shed, always add moisture for you. design looks unique and the color is bright, the perfect gift for families, children and friends. Best moisturizing friend: Don't you like large and bulky insulated water bottles, but do you want to bring hot or cold water? Choose us, it is easy to transport without loading the compact size. It is especially designed for children or elegant ladies, it is always suitable for use during travel or outdoors. A good choice for gifts: not being dehydrated every day is vital for good . This is a drinking bottle for every situation and every member of the family. It is designed to be lightweight, easy to carry, suitable for children and adults! It can also be used as a gift for friends, children, lovers.