THIS TUMBLER IS PERFECT FOR LONG TREKS AND ROAD TRIPS - WHETHER IT'S A DAY IN THE WILDERNESS OR A TRIP ACROSS TOWN. EXTREMELY DURABLE VACUUM INSULATED MUG HOLDS HOT OR COLD BEVERAGES. EXTERIOR IS COOL TO THE TOUCH WITH HOT BEVERAGES AND SWEAT PROOF WITH COLD BEVERAGES. BUILT IN TEA HOOK HOLDS TEA BAGS AND MOST LOOSE LEAF INFUSERS.