These are straight jeans by Bobson, and since they are made of American fabric, they were probably manufactured in the early 1970s. According to the data, Bobson was established in 1950 as a manufacturer of school uniforms under the name of "Yamao Hifuku Kogyo", and started manufacturing and selling "Bobson" jeans in 1971, changing the company name to Bobson in 1973. The products introduced here do not have "Yamao Hifuku Kogyo" written on the flasher, etc., so it is assumed that they were made after the company name was changed. The model number of the product is not clear, but since the patch says "S28", I assume that this is the model number and have included it here.
This is a rare pair of jeans made in Japan, and is a rigid product with glue.
Moderately thick and straight, similar to Levi's 501. Not very tapered.
paper path
This patch has the trademark longhorn on it, and the lot number is "S28", but the official lot number is unknown. It says "MATERIAL MADE IN U.S.A." instead of "MADE IN U.S.A."
flasher
There is no longhorn on the flasher, but there is a cowboy with the words "AUTHENTIC WESTERN JEANS". The flasher also has "MATERIAL MADE IN U.S.A." on it.
inner tag
An embroidered tag is attached to the paper patch in a position directly behind the patch.
back pocket
The backstitching on the Bobson is known as reverse arcuate, but the one shown here has a very subtle stitching.
tab
Hidden by the flasher is a "BOBSON" tab on the right back pocket.
top button
For the top button, a generic button is used, as sometimes seen.
zipper
The zipper used is a semi-automatic zipper made by Talon.
top button (back)
The back of the top button has "SCOVILL" stamped on it. This is a part that is rarely seen on the back of a top button.
rivet
LEE type rivets, and no engraving.
rivet (back)
Generic rivet backing.
coin pocket
LEE-type construction with only the right edge showing.
outseam
The selvedge is not used. Chain-stitched hems.
fabric
The fabric is a very dark denim, like Big E or earlier XX fabric. According to the flasher, the fabric is 14 ounces. The slub is not very strong, and there is almost no nep.
| size | waist |
seat | front rise | back rise | thigh | inseam | opening | total length |
| W32/L32 | 30 | 39.5 | 10.5 | 12.5 | 11 | 32 | 8 | 41.5 |