Stanley mugsespecially the Quencher modelshave been hugely popular lately, and for good reason. Since 1913, Stanley has been making various thermoses and food storage solutions, and theyre known for their reliable quality. Their stainless steel mugs are built to withstand real-life use. Note! This product does *not* include the mug itself. The item being sold here is a carrying case for the mug. The case is made from recycled polyester. It features a phone pocket and a smaller pocket that fits, for example, a minimalist card wallet. A separate mesh pocket easily holds compact earbuds, lip balm, or other small essentials. A key clip and a pass-through slot for sunglasses arms complete the package!