1.MATERIAL: Double-walled stainless steel interior and exterior.
2.INSULATED: Unique double walled vacuum insulation technology with vacuum-seal cap keep your drink hot for 6 to 12 hours or cold for 24 hours.
3.SPECIAL DESIGN: Specially designed cap to prevent spills, perfect for your gym bag, car, bicycle and backpack to enjoy hot yoga class, hiking, trekking, cycling,camping, long load trip, or any other indoor and outdoor activities.