Tumblers are 20 oz double layer stainless steel. They come equipped with a sliding lid & a reusable straw. These tumblers are great for hot or cold!
Like most drinkware, hand washing is best , the dishwasher heat can fade or run ink over time. In addition, seals and/or lids on stainless steel drinkware cannot be guaranteed after use by customer. Please wash with care.