Ideal for active families, fitness enthusiasts, and commuters seeking a sturdy stainless steel straw tumblers that adapts to dynamic lifestyles all day thermal retention with our double layered stainless steel insulated water bottle, featuring inner 316 and outer 304 construction to maintain hot / cold beverages for up to 12 hours perfect for outdoor adventures or hydrations Engineered with accuracy, this thermal mug combines heavy duty 304 / 316 stainless steel construction with user centric features like anti sweat coating and quick access straw lid for versatile indoor / outdoor use Keep drinks at optimal temperatures during hiking trips, gym, or daily commutes, with easy cleaning wide mouths design suitable with handwashing and dishwashers The large sized straw enables rapid hydrations, while the leak proof seal cap and ergonomic handle ensures spill proof portability and comfortable grip during extended use