This hefty hydrator is designed to carry 35 ounces of cold beverages. It is supremely insulated and has an elevated handle and a design compatible with cup holders. Made of 18/8 stainless steel to resist dents and drops, with double-wall vacuum insulation to keep drinks cold. It has a no sweat design to prevent condensation and is dishwasher safe. The straw lids are durable and have a molded-in stopper to hold the straw in place. All YETI Rambler Lids are shatter-resistant, dishwasher safe, and BPA free. Not suitable for hot beverages.