Introducing our Bamboo Top Tumbler, crafted with precision using 18/8 double wall stainless steel. The ergonomically designed swivel handle ensures a quick and effortless grip, adding convenience to your daily routine. Whether it's in your car or in your bag, this tumbler seamlessly fits in, providing a secure hold. Prepare to savor the sheer delight of icy cold water that remains refreshingly chilled for an impressive 24 hours. But wait, there's more! Hot beverages stay delightfully warm for up to 12 hours, offering a touch of coziness to brighten your day.