Hans Larsen Borculo Vacuum Insulated Tumbler with Reusable Straw is part of the CHANGE Collection, and as a result, contributes to Water.org - a global NGO that provides millions with access to safe water and sanitation. By giving to Water.org, you are giving a GIFT THAT GIVES BACK. Borculo is double walled, leak-proof, stainless steel reusable coffee tumbler with 5 hours hot, and 15 hours cold storage. Scandinavian design. Includes a reusable straw with a straw cleaner. Content: 540ml. Packed in a stylish recycled box that educates about making the Change from single-use to reusable products.