Vinosen Double Walled Glass Tumbler with Strainer & Stainless Steal Infuser | Tea, Herb, Coffee, (Green) FREE NEOPRENE SLEEVE INCLUDED: This Tumbler comes with a free neoprene green sleeve bag to help provide further insulation for your beverage. MADE WITH THE EARTH IN MIND: 100% BPA free, eco-friendly, Reusable, Less Waste of Plastic water bottles & glass tea bottles. BAMBOO LID: Providing added insulation DID WE SAY IT'S GREEN? By using this product, you are contributing to a greener environment because there will be less of a need to transport further glass tea bottles, plastic water bottles, or glass coffee drinks to your local supermarket, reducing fuel costs and emissions. KEEPING IT FRESH: You can not get more fresh than this - infuse fresh tea leaves, fresh fruit and brew freshly grounded coffee.