Just use cold or hot tap water to precool or preheat this prior to filling and let it set 5 minutes then fill with your liquid of choice

This bottle is made of three piecesthe bottle itself 2

25 inches has a 2 inch top opening for easy cleaning and filling it fits in most bottle pockets and cup holders plus this is made of quality stainless steel and boasts a solid leak proof cover

But there is even more there is also a quality stainless steel strainer that will snap in place inside this bottle so you can add fruit or tea leaves to this bottle for your own infused water