Promotional Tumblers & Travel Mugs, Sumatra 15 oz Ceramic Campfire Mug - Speckled & Microwave Safe, The Sumatra 15 oz ceramic mug is perfect for both indoor enjoyment and outdoor activities. The mug comes with a beautiful, speckled finish and contrasting white inner wall. The Sumatra is compatible with most single serve coffee machines and is microwaveable. FDA compliant and BPA Free. ... #KM5903 $6.14/each.