To keep up with the changing climatic conditions, you need products that are suitable for hot and cold weather. The bottles are leak-proof and can be used to store water in the refrigerator . Trendy bottles can be used by school college kids,students,officials,office going working guys,men,women,boys or girls. They are easy to wash, sturdy and long-lasting with a strong durable body. Material with top quality stainless steel for storing clod beverage 18/8 quality stainless steel fabrication inside the bottle stainless steel bottle is considered to be one the healthiest water bot. Durable and light weight: water bottle is made from stainless steel, both inside and out, durable and light weight, it can take a beating and still remain leak free and sturdy cleaning instructions: Use mild detergent and use a brush to clean insides. Do not use bleach, chlorine, strong cleaners.