This double walled mug is made of food grade stainless steel and features a carabiner clip that easily attaches to your belt, backpack or other camping equipment. It is an essential climbing/ hiking accessory for campers, backpackers, hikers, and climbers. The mug insulation maintains the temperature of your favorite beverage and the rolled rim edges make for a comfortable sipping experience. Add your organizational or business emblem to create a dynamic branded accessory that's a great giveaway for sporting goods retailers or outdoor supply stores.