3 ounces, yards and inches What is the concept?

　　Ounces, usually in the textile sector, referred to as OZ, its conversion is 1 ounce equals 28.375 grams, but the machine is generally known as cloth 28.35 grams. 1 yard = 0.9144 meters. 1 inch = 2.54 cm. The length of the denim fabric is usually calculated in units of code, usually people will say how many yards this volume cloth? Your fabric is how much a code? The jeans are usually the size in inches to put the code, such as the hip to determine the 27 yards as the base number of 91 cm, 28 yards than 27 yards freshman-inch, 26 yards than 27 yards is a small one inch. Some consumers may think that his hip is the metric of the two shakuhachi, is that the size 28 jeans, it is not accurate.
From: http://jeansformen.livejournal.com/