Design and Details Laser-engraved with multi-color signature Grayl topo art. CP4 Grade 1 titanium offers unparalleled strength to weight ratio. Award winning OnePress global filtration and purification is effective for use on all 7 continents and empowers adventurers to drink from the world's sketchiest freshwater. Paracord D-ring loop for filling in precarious situations (foot bridges, whitewater, canyoneering, etc). Heat it up! Utilizing the butterfly handles, the Outer Ti Cup can be used to heat water and cook food alongside hot coals or near a direct flame. Can also be used with the Grayl titanium camp stove.