Features: Dent Resistant: 18/8 stainless steel protected by a durable outer shell (TPE material) Easy-Flow Straw Cap: Flip-up straw spout makes hydrating easy while being leak-proof and spill-proof when closed 24+ hour insulation: Double-walled insulation keeps the outside dry and drinks cold for hours Personalized I.D. Badge: Space to write your name and make it your own Top-rack dishwasher safe, odor and stain-resistant Capacity: 22 oz.