Two of the most popular weights used for vests are the 20- and 50-pound versions, though other weight limits also exist. The primary use of a weight vest is for resistance training, though losing weight is another effect. Resistance training is meant to build muscle. Mass, strength and power increases are usually seen as a consequence of resistance training. The benefits with a vest are increased because of the extra weight.
Did you mean Mt. Rainier? Mt. Rainier is 14,411 ft (4,392 m) in elevation, and 13,211 ft (4,027 m) in prominence.
Washington is the second most populous state on the West Coast and in the Western United States, after California. Mount Rainier is the state's highest elevation at almost 14,411 feet (4,392 m). Washington is a leading lumber producer.