Tree-Free Greetings strives to use the most eco-friendly materials and processes possible. The Tree-Free Greetings Sip 'N Go Travel Tumbler is made of premium quality stainless steel with a curved acrylic outer. BPA free and Proposition 65 compliant, this durable tumbler holds 16 ounces of your favorite hot or cold beverage and comes in numerous vibrantly printed Mossy Oak Camo art designs. Hand wash only, the Sip 'N Go Travel Tumbler makes the ideal gift for any occasion. Save trees and spread joy. Buy a Tree-Free earth-friendly gift today.