Cut
The leg runs about the same width from the knee to the hem. It's the shape of the 501, the Lee 101 and most old work jeans, and the easiest vintage cut to wear today. Two straight legs from different decades can still sit very differently, so ask for the thigh and the leg opening as well as the waist and inseam.
19 models we cover.

Levi's · Straight leg
501Big E tab 1936–1971; this page covers the bar-tacked pairs of about 1966–1971
$460–$925 typical ask
33 on eBay

Levi's · Straight leg
501XXHidden back-pocket rivets about 1937–1966
$2,300–$5,150 typical ask
24 on eBay

Levi's · Straight leg
5011971 to the mid-1980s
$300–$525 typical ask
88 on eBay

Levi's · Straight leg
501-0000USA-made into the early 2000s; the 0000 code is still in use
$80–$140 typical ask
158 on eBay

Levi's · Straight leg
501-0115USA-made pairs from the 1980s and 1990s; the 0115 code is still sold
$50–$120 typical ask
175 on eBay

Levi's · Straight leg
501Late 1980s to 2003
$70–$130 typical ask
183 on eBay
Levi's · Straight leg
501Mostly from the 2000s on
$35–$70 typical ask
208 on eBay

Levi's · Straight leg
5051967–present
$35–$65 typical ask
231 on eBay
Lee · Straight leg
1011924–present (Cowboy pants until the mid-1940s, then Riders)
$35–$70 typical ask
201 on eBay
Lee · Straight leg
101BOriginals from the 1920s to the 1940s; reissued since the late 1990s
$160–$390 typical ask
72 on eBay
Lee · Straight leg
191-ZAbout 1950 into the 1970s
$25–$45 typical ask
51 on eBay
Lee · Straight leg
101-ZLate 1920s to the early 1970s; reissued today
$280–$1,550 typical ask
25 on eBay
Big Yank · Straight leg
Dungarees1950s
$35–$70 typical ask
51 on eBay
Wrangler · Straight leg
11MWZ1947 to about 1952, then renamed 13MWZ
$1,150–$2,550 typical ask
25 on eBay

Wrangler · Straight leg
13MWZAbout 1952–present (the renamed 11MWZ)
$35–$50 typical ask
230 on eBay
Wrangler · Straight leg
13MWZPWPW versions by the late 1970s or early 80s, still made
$25–$40 typical ask
215 on eBay
JCPenney · Straight leg
Plain PocketsMid-1970s to the late 1990s
How to date it and what to check →
Sears · Straight leg
Roebucks1949 into the 1990s
$20–$45 typical ask
117 on eBay
Sears · Straight leg
Toughskins1971 into the 1990s
$25–$55 typical ask
84 on eBay