The skinny tumbler is with Double-Wall Vacuum technology to keep drinks hot for over 8 hours and keep cold 9 hours.Use it to enjoy a cold drink anytime and anywhere.This unique tumbler makes companion for any drinks.The 20 oz capacity double wall insulated tumbler especially for you to enjoy your wine and coffee.Slim and easy to hold.Light weight and fits cup holders. The insulated travel tumbler is made from high quality BPA free food grade stainless steel.Lead free and durable, does not rust or leave a bad metallic taste in the mouth.Let you enjoy a delicious drink.