Limited Edition!! This modern stylish mate is made from 100% silicone on the inside and a polypropylene neck on the outside. Include a stainless steel bombilla. Its properties will allow you to enjoy a better experience when drinking mate. The durability of these components will ensure a long product life and provide much more hygienic properties. Silicone is a natural thermal insulator so you will not feel the heat or the cold. Made in Argentina. Just give it a squeeze to empty it out, rinse it, and put it in the dishwasher to clean.