Under Depressionen blev jeans stadig betragtet som funktionelt arbejdstøj. På 501XX fra omkring 1933 sad nitterne på baglommerne stadig udvendigt og jeansene havde både cinch back, bæltestropper og knapper til seler. Bemærk også, at 1933-modellen ikke har en Red Tab, den blev først introduceret i 1936.
S501XX fra 1944 er kendetegnet ved sine påmalede arcuates. Under Anden Verdenskrig skulle Levi's, som alle andre amerikanske tøjproducenter, skære ned på ressourceforbruget og virksomheden fik stillet krav om at spare tråden til de dekorative pyntesyninger væk. Eftersom de to buer på baglommerne - som i øvrigt blev patenteret i 1943 - var blevet et varetegn fra mærket blev de derfor malet på.
Efter krigen voksede efterspørgslen på denim jeans kraftigt og på 501XX fra omkring 1947 var de påsyede arcuates tilbage, for første gang syet med dobbelt nåle, hvilket giver en genkendelige "diamant", hvor syningerne krydses.
I starten af 1950'erne gik Levi's ind på det østamerikanske marked, som var domineret af blandt andet Lee. Her erfarede Levi's en efterspørgsel på jeans med lynlås, hvilket resulterede i lanceringen af 501ZXX omkring 1954.
Vi er nået op i 60'erne og jeans er for alvor blevet et modefænomen. Slidstyrke er for mange blevet nedprioriteret til fordel på udtrykket og Levi's vælger derfor at erstattet de skjulte nitter med bar tags på 501 fra 1966.
I 1967 designede Walter Landor & Associates det velkendte røde bagwing logo, som er en afspejling af den øverste halvdel af en Levi's baglomme. I processen blevet e'et ændret fra stort til lille, fra LEVI'S til LeVI's (eller Levi's), og omkring 1971 blev det lille e også implementeret i Red Tabben. En umiddelbar lille designændring, som affødte det vi kender som "Big E" og "small e" Levi's jeans. 501 fra omkring 1978 er derudover kendtetegnet med at være den sidste 501 syet med Cone Mills XX denim vævet med ring-spun garn i både skud og kæde. Lost in translation? Du kan læse mere om denimens detaljer i vores ordbog 
Denne gennemgang berører naturligvis kun en brøkdel af den fascinerende historie, der ligger i Levi's 501. Kom forbi butikken og få hele historien af en af vores kyndige sælgere. Her kan du også få vejledning til hvordan du griber hele shrink-to-fit konceptet an. Hvis du vil læse lidt hjemmefra kan vi anbefale Denimhunters' størrelsesguide til 501 fra 1944, 1947, 1954 og 1966, som du finder 
Sizing
CLOTHING SIZES
For clothing sizing information, please read the description of the given product carefully.
If no sizing information is available, please do not hesitate to ask us before purchasing.
We will do our best to respond as quickly as possible.
Have a sizing question? Let us know.
HOW TO FIND YOUR BOOT SIZE
If you are shopping for a pair of Red Wing shoes or boots, the first thing to consider with regards to sizing is this:
Most Red Wing boots, like the popular Iron Ranger and the Beckman run big. Therefore we recommend sizing down half a size from your sneaker-size if you are purchasing Iron Rangers, Beckmans and most other Red Wing boots. However, the Red Wing chukkas (3140, 3141 etc.) are true to size. Therefore we recommend ordering your sneaker-size if you are purchasing chukkas.
Please read the sizing-description on each style carefully, before ordering.
Size systems
There are many shoe size systems globally, with the US, UK, European and Japanese size systems as the most common ones. The US system also has a special category for athletic shoes.
In Europe, shoe makers are supposed to follow the same shoe-size system. Note however, that sizes might differ between e.g. France and Germany. The sizes also aren't totally standardized, which means that shoes from different manufacturers might have different sizes, although they have the same measurements.
Size chart
Size charts are used to convert between different international shoe size systems. Notice that these size charts are only to be seen as guides meant to help you find your right size. Sizes and size charts may differ notably between different shoe manufacturers and brands. See the Brund shoe/boot size chart here.
Shoe last
In order to build a Goodyear Welted boot (e.g. a Red Wing boot) to an exact size and width, the boot is constructed around a shoe last.
A last is used in shoemaking to give footwear its three-dimensional shape. Resembling the human foot, the last determines toe, heel and girth dimensions for fit, style and function.
Do notice that there is no such thing as a "normal foot" and therefore not a standard shoe last - and therefore also not a "normal shoe size". Add to that the fact that most people’s right and left feet have different measurements.
Learn about Red Wing lasts and the Anatomy of a Red Wing at www.redwingheritage.com.Shoe width
Most shoemakers make some of their shoes in multiple widths, from narrow to extra-wide.
US width is measured as A, B, C, D, E, EE with A as the narrowest, EE as the widest and the standard width being D.
English made men’s shoes and boots are generally made in fittings E, F, G and H and these can quite simply be classified as follows:
E= Narrow
F= Medium
G= Wide
H = Extra Wide
Loake uses F or G and Crockett & Jones uses E and G.
The right size
A new pair of e.g. Red Wing Heritage boots should fit comfortably tight on your foot, with enough room to freely wiggle your toes.
The full grain leather upper, leather footboard and cork midsole mold to your feet, creating an enduring and customized fit over time, with each wear.
Measuring your feet
Stand up straight on a hard surface with your heel against the wall and a piece of blank paper taped to the floor, flush against the wall beneath your foot.
Have a friend mark the longest part of your foot (referred to as heel-to-toe length) on the paper with a pen, or measure yourself if necessary. Repeat with the other foot, as right and left sizes may be different. Use a ruler to measure the heel-to-toe length you marked for each foot.
View the BRUND shoe/boot size chart here
When using the chart, take note that ”CM” is NOT your heel-to-toe length in centimeter (cm), but the official shoe size (CM)
Guidelines
If you have a medium or standard foot and use US 9,5 in New Balance Lifestyle, you will probably use US 9 in Red Wing, Thorogood and Chippewa and UK 8,5 in Loake and Crockett & Jones.
I use US 9,5 in New Balance Lifestyle and my right foot measurement is 28,5 centimeters from heel-to-toe. My size in New Balance Performance is US 10,5.
Confused ? – then, please read from ”Size systems” again ;-)
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