Features: Dent Resistant: 18/8 stainless steel protected by a durable outer shell (TPE material) Screw Cap: Leak-proof cap rotates and locks to the side for an easy drinking experience 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.