Made high quality Aluminium. 100% food grade approved for better safety from chemical components. Solid stainless steel that is still lightweight (225gms) and impact resistant. Helps in easy portability of the bottle. Carry handle makes it easy to carry around anywhere. Straw lid helps in sipping drinks while on the go. Leak proof cap allows the bottle to be carried everywhere without worries of liquid spill. Large spout helps for easy access to the drinks.