The Flagship product of the Misty Mate-« personal cooling line is the Misty Mate-« PumpTM personal air cooler. With over ten years of engineering and development, the Misty Mate-« PumpTM Deluxe represents the Ultimate Personal Cooling Solution. Lightweight! Weighing less than 2 lbs., the Misty Mate-« PumpTM is so lightweight you'll hardly know your carrying it! Strap it comfortably around your waist or shoulder with the built-in strap. Easy to use! Simply unscrew the cap, revealing the large mouth water bottle. Fill with water and pump it up! Built-in pump pressurizes the system. No batteries, no motors! Lasts for hours! The 16 oz. model lasts an average of 2 1/2 to 3 hours if used intermittently. Add ice cubes for a real cool sensation in high humidity. Includes 3 feet of flexible tubing with clip for attaching to hat, or whatever for hands free use. 16 oz. model fits in the bottle cage of a bicycle! Great for any outdoor activity! Sunbathing, hiking, biking, golf, spectator sports, fishing, boating, con