The 20 oz Skinny Stainless Steel Insulated Tumbler is a three-piece set that includes a slide lock lid and a stainless steel and BPA-free plastic construction, making it suitable for both hot and cold beverages. With a capacity of 20 oz and the ability to keep drinks cold for 8 hours, this tumbler is perfect for teenagers and kids looking for a durable and spill-proof option. It also comes with a straw and is suitable for hot beverages, making it a versatile choice for any drink preference. The tumbler features a lifetime manufacturer warranty and is designed with a multicolor theme, making it a stylish and practical choice for on-the-go use.