All the performance you need in the lightweight design you want. Packed with premium features like triple walled vacuum insulation, 18/8 stainless steel, a tactical engraving pattern and leak-proof lid yet 20% lighter than its competitors, the Ultralight Bottle is must-have gear. The Ultralight Bottle’s cutting-edge triple walled design features a layer of copper between the bottle’s stainless steel walls for unparalleled temperature retention. Thanks to a custom-threaded lid and vacuum insulation technology, the Ultralight Bottle will never drip, leak, spill or sweat. Period. The Ultralight Bottle’s durable powder coated finish will never rust or fade in the sun and stands up to scratches, drops and full on tumbles. Designed with an innovative tactical engraving pattern, the Ultralight Bottle fits in your hand and stays there, no matter the conditions.