One of the best parts of camping - campfire coffee! * All food-grade stainless steel - non-rusting, strong & lightweight; no BPH, hypoallergenic & sanitar * Unique functional carabiner handle with screw lock clips to backpack, etc. so its always easy to fin * Flat bottom adds stability, rolled rim for comfortable sipping, easy-care brushed finish; holds 9 oz * Double-wall construction creates thermal barrier that insulates beverages - mug stays cool to touch