All drink ware is Stainless Steel and Double Walled (unless specified) for insulation purposes. Great for BOTH hot and cold drinks. Double Wall items are NOT to go in the dishwasher as it can ruin the seal on the double wall and thus ruin the insulating properties. Please hand wash all double walled items.
Travel Tumblers are 20oz and come with a screw on lid that has a dual option, lift one side to drink and lift the other side for a pop up straw. Wine tumblers are 12oz and come with a slip on lid (not leak proof) that has a slide to access either spot to drink from or to put short straw. Wine tumblers are great for more than wine, for example, coffee, tea, cocoa, etc.