Borculo vacuum insulated tumbler with reusable straw is part of a global NGO that contributes and provides millions with access to safe water and sanitation. Borculo is double walled, leakproof, 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.