Size & fit guide

Two size charts below — one for insoles, one for shoes. Both run EU 35 to 46. If you fall between two sizes, take the larger one.

Measure your foot first

It takes a minute and it is more reliable than guessing from the size you usually buy.

  1. Put a sheet of paper on the floor against a wall.
  2. Stand on it with your heel touching the wall.
  3. Mark the paper at the tip of your longest toe — that is not always the big toe.
  4. Measure from the edge of the paper to the mark, in millimetres.
  5. Measure both feet and use the larger number. Most people have one foot bigger than the other.

Measure at the end of the day. Feet swell, and a shoe fitted in the morning can feel tight by evening.

4D Cloud Insoles

Trim-to-fit. Order the size that covers your foot length and cut the toe end down if needed.

EU UK US Men US Women Foot length
35–36 3–4 4.5–5 5.5–6 230 mm
37–38 4.5–5 5.5–6 6.5–7.5 240 mm
39–40 6–6.5 6.5–7 8–8.5 250 mm
41–42 7–8 8–8.5 9.5–10 260 mm
43–44 9–9.5 9.5–10 11–11.5 270 mm
45–46 10.5–11 11–11.5 12.5–13 280 mm

SteppX Hydro Shoes

Unisex sizing, one run from EU 35 to 46. Made to be worn barefoot or with thin socks — if you plan to wear thick socks, size up.

[TO VERIFY] The shoe conversions below are standard EU equivalents, not figures confirmed by our supplier. Ask them for the insole length of each size and correct this table before relying on it.

EU UK US Men US Women Foot length
35 2.5 3.5 5 225 mm
36 3.5 4 5.5 230 mm
37 4 5 6.5 235 mm
38 5 6 7.5 240 mm
39 6 6.5 8 245 mm
40 6.5 7 8.5 250 mm
41 7.5 8 9.5 260 mm
42 8 8.5 10 265 mm
43 9 9.5 11 270 mm
44 9.5 10.5 12 280 mm
45 10.5 11 12.5 285 mm
46 11 12 13.5 290 mm

Still not sure?

Email help@steppx.com with your foot measurement in millimetres and we will tell you which size to order. If it arrives and the fit is wrong, you have 30 days to send it back.