TIGER's Over 80 years of experience in vacuum bottle development have produced a superior line of rugged, high-performance insulated bottles for sports and outdoor use - SAHARA . The SAHARA Sports Bottle in blue and stainless metallic finishes feature slim styling with a screw off cap and a generous 20-ounce capacity. Double wall TRUE TEST vacuum construction with its unique, additional copper inner liner keeps fluids colder and fresher longer. The angled drinking spout makes drinking easier when you're on the go, the top section screws off to allow for ice cubes. The SAHARA Outdoor Bottle has the same double-wall and extra copper liner construction and holds a big 48 ounces of liquid to sustain you during long hikes and other outdoor activities. It comes in a handy webbed cloth carrying case with an adjustable sling. TIGER SAHARA bottles carry a 5 year warranty on workmanship and materials.