Superfeet Size Chart

This is our Superfeet size guide for insoles. Superfeet insoles come in letter sizes, and each letter covers about one and a half shoe sizes. Find your usual shoe size in the chart below to get your letter. Full-length insoles are trimmed to fit your shoe, so if you're between sizes or unsure, Superfeet recommends sizing half a size up. If you're still not sure, it's always best to get fitted at your local running store.

Superfeet Insole Size Chart

For all Superfeet insoles we carry (sizes B to G). Our product pages also show the shoe size range for each letter.

Superfeet insole letter sizes by US men's and women's shoe size

Superfeet size	US Men's	US Women's
B	–	4.5–6
C	5.5–7	6.5–8
D	7.5–9	8.5–10
E	9.5–11	10.5–12
F	11.5–13	–
G	13.5–15	–

How to measure

1. Start with the shoe size you usually wear in the shoes you'll put the insoles in.
2. Find that size in the men's or women's column and note the letter beside it.
3. If you're between sizes or unsure, go half a size up.
4. Check that your heel sits in the insole's heel cup, not on top of it.

Fit tips

• Between sizes: Superfeet recommends sizing half a size up, since the insoles are trim-to-fit. The most important thing is that your heel fits well in the heel cup.
• Trimming full-length insoles: full-length Superfeet insoles are meant to be trimmed to fit your shoe. Use household scissors and leave a 1–2 mm gap between the insole and the end of the shoe.
• ¾-length insoles: these are not meant to be trimmed.
• Women's insoles: women's-specific insoles are made with women's dimensions, including a slimmer heel cup.

These charts are a guide, not an exact fit. Sizing can vary between insoles and with the shoes you wear them in.

Superfeet Sizing FAQ

What size Superfeet do I need for a men's 10?

A men's 10 is size E (men's 9.5–11).

Should I size up or down in Superfeet?

If you're between sizes or unsure, Superfeet recommends half a size up, then trimming the insole to fit.

Do I need to trim Superfeet insoles?

Full-length insoles usually need trimming. Cut them with household scissors, leaving a 1–2 mm gap at the end of the shoe. Don't trim ¾-length insoles.

How should Superfeet insoles fit?

Your heel should sit in the heel cup, not on top of it. Superfeet says a good heel fit matters most, especially if you're between sizes.

Shop Superfeet and Get Fitted

Shop all Superfeet

Not sure about your size? Call us at (250) 331-6917 or come try them on at A-442 Duncan Ave, Courtenay; it's always best to get fitted at your local running store.

Size data from Superfeet's official size chart (superfeet.ca) as of October 26, 2026.