By Stride Select · Updated . Source guidance checked 2026-09-18.
Measure both feet
Wear your running socks and measure later in the day. Standing on paper, mark your heel and longest toe, then measure the distance. Measure both feet and use the longer measurement when consulting the brand’s chart.
Check the exact range
Use the chart for the brand and men’s, women’s, or unisex range you are buying. Foot length is not always the same as the centimeter size printed on a shoe. A familiar size is a starting point, not a fit guarantee.
Try both shoes
Look for space ahead of your longest toe and a secure midfoot and heel without squeezing. Walk or jog briefly if the store allows it. Check the retailer’s return conditions before taking shoes outdoors.
Take a question to the try-on
- Save your shortlist and record the size range and width you want to try. Use the chart for the exact brand and range.
- Run through the checklist below in both shoes. Record what feels comfortable and what needs a different size, width or model.
- Keep the return conditions with your notes before using a pair outdoors. Buying preferences here do not reserve retailer stock.
A practical example. A shopper comparing two models can note “heel holds well” beside one and “pressure at midfoot” beside the other. Those personal observations are more useful for the next try-on than assuming the same size label guarantees the same fit.
Read the source: REI: How running shoes should fit
Go straight to the brand’s chart.
For other brands, use the size guide on the exact product page. Range and region matter.
Your try-on checklist
0 of 6 checkedSaved in this browser. Reset it when you try a different pair.
Put the guide beside a shoe profile.
These are examples from the daily running shoes category, not a ranked recommendation. Check the exact model’s recorded details and source date.
SUPERBLAST 3
A cushioned daily and faster-training shoe with FF LEAP foam and a trampoline-shaped outsole pod.
Recorded uses: Everyday runs, Faster training · Information checked 2026-09-07.
Adizero EVO SL
A light, plate-free road trainer for everyday miles and faster sessions.
Recorded uses: Everyday runs, Faster training · Information checked 2026-09-07.