Online shoe sizing gets easier when you separate two things that are often treated as the same: your measured foot length and the size label printed beside it. A US 7, US 8 or EU 39 is a conversion label. The measurement you can verify at home is the distance from the back of the heel to the longest toe. Measure that first, then compare it with the exact chart on the product page you are considering.
Set up a measurement you can repeat
Use a flat floor, a sheet of paper, a pencil and a ruler or tape measure. Stand naturally instead of curling the toes or leaning forward. Mark the heel position and the end of the longest toe, then measure the straight distance between those two points. Record the number rather than rounding it to the size you usually buy.
Repeat the process instead of trusting one quick mark. If two attempts differ, measure again. A repeatable number is more useful than a rushed result that simply confirms the size you expected.
For the broader sizing framework, see our published Complete Shoe Size & Fit Guide.
Measure both feet before choosing the chart entry
Do not assume both feet give the same number. Measure each foot separately and keep both results. When the product chart is based on foot length, use the measurement that prevents the longer foot from being forced into a shorter length.
This still does not tell you everything about width, instep volume or toe shape. Length is one fit input. It should be combined with the construction of the actual shoe rather than treated as a complete fit guarantee.
Use the live product chart instead of a saved conversion table
The current Abstract Print Lace Up Sneakers provide a foot-length chart from 9 inches at US 5 through 10.4 inches at US 11 and currently state a true-to-size supplier fit note. That chart is more relevant to this product than a generic conversion chart copied from somewhere else.
The Adjustable Buckle Strap Sandals also provide foot-length measurements, beginning at 8.8 inches for US 4 and extending through 10.4 inches for US 11.

Different shoe constructions can share the same length chart
The Bow-Tie Knit Slip-On Sneakers also publish foot-length measurements from 9 to 10.4 inches and currently carry a true-to-size supplier note. But a knit slip-on and a lace-up sneaker hold the foot differently. The length chart helps you enter the right sizing conversation; the upper design helps you judge how secure that size may feel.

Avoid four measurement shortcuts
- Do not trace while sitting if your goal is a standing measurement.
- Do not convert the measurement to your usual size before checking the live chart.
- Do not use one foot as proof that the other matches.
- Do not treat length as proof of width or toe-box comfort.
If a shoe repeatedly causes friction even when the length looks correct, use our published shoe-friction guide to identify where the mismatch is happening.
For current casual footwear examples with live size charts, browse the Sneakers collection.
FAQ
Should I measure my foot or an old shoe?
For a product chart based on foot length, measure your foot and compare that number with the live chart.
Can I use one universal shoe size chart?
A generic chart can provide context, but the product-specific chart should guide the comparison when one is available.
Does foot length tell me shoe width?
No. Length and width are different measurements and should not be treated as interchangeable.
