Fitflop Size and Fit guide

Brand & fit at a glance

Size system
UK
Fit
True to size
Origin
UK
Best for
Everyday wear

About FitFlop: FitFlop is a British footwear brand founded in 2007 by Marcia Kilgore. They are best known for cushioned sandals and flip-flops, though the range now runs to trainers, boots and everyday casuals. The Microwobbleboard™ sole is their hallmark: a triple-density footbed that absorbs impact and spreads pressure across the foot. If you are on your feet a lot and want proper cushioning under a summer sandal or a casual shoe, FitFlop is a brand we are often asked about.

FitFlop fit & sizing tips

  • Sizing varies by style. Many FitFlop sandals feel generously cut compared with other brands, while some strappy or closed styles run closer to true size. If you are between sizes, FitFlop’s own guidance is usually to size up. Their size guide also gives footbed length in millimetres if you want to measure.
  • The midsole does the work. FitFlop’s cushioned sole absorbs shock as you walk, so new pairs tend to feel comfortable straight away with little breaking in.
  • Toe-post styles need a snugger fit. On toe-post sandals, avoid sizing up, as too much length makes the toe strap sit in the wrong place.
  • Our take. A good choice if you are on your feet a lot and want genuine cushioning rather than a sandal that only looks comfortable.

FitFlop Women’s Shoes

This is FitFlop’s own women’s chart from their UK fit guide, with foot length in millimetres. They say that if you are unsure, take the next size up, and that fit still varies with the style and the sole. Sizes on our site come and go with stock.

Fitflop women’s shoes size conversion
UK EU US Foot mm
2 35 4 210–214
2.5 35.5 4.5 214–218
3 36 5 218–222
3.5 36.5 5.5 223–227
4 37 6 227–231
4.5 37.5 6.5 231–235
5 38 7 235–239
5.5 38.5 7.5 240–244
6 39 8 244–248
6.5 40 8.5 248–252
7 41 9 252–256
7.5 41.5 9.5 256–260
8 42 10 260–264
8.5 42.5 10.5 264–268
9 43 11 268–272

Source: fitflop.com size guide

FitFlop Men’s Shoes

This is FitFlop’s own men’s chart from their UK fit guide, with foot length in millimetres. They say that if you are unsure, take the next size up, and that fit still varies with the style and the sole. Sizes on our site come and go with stock.

Fitflop men’s shoes size conversion
UK EU US Foot mm
6 40 7 244–248
6.5 40.5 7.5 248–252
7 41 8 252–256
7.5 41.5 8.5 256–260
8 42 9 260–264
8.5 42.5 9.5 264–268
9 43 10 268–273
9.5 43.5 10.5 273–277
10 44 11 277–281
10.5 44.5 11.5 281–286
11 45 12 286–290
11.5 46 12.5 290–294
12 47 13 294–298

Source: fitflop.com size guide

Glossary

Microwobbleboard™ midsole

FitFlop’s cushioned sole technology with three density zones that absorb shock and spread pressure as you walk.

Anatomicush™

A contoured, cushioned footbed shaped to support the natural arch of the foot.

Toe-post sandal

A sandal style with a strap that sits between the big and second toe, as seen on FitFlop’s best-known styles.

Frequently Asked Questions

Do FitFlop shoes run true to size?

We find it depends on the style. Many open sandals feel roomier than shoes from other brands, and some customers size down on toe-post styles, while slimmer strappy models fit closer to true size. If you can try them on in the shop, that is always the safest approach.

I’m between sizes. Should I size up in FitFlop?

FitFlop’s own guidance is to choose the next size up if you are between sizes, as feet swell during the day. On toe-post sandals we would still avoid going up unless the length is genuinely short, because extra length can throw off where the strap sits.

Are FitFlop sandals good for wide feet?

Generally, yes. FitFlop footbeds are cut with room for natural toe movement, and many styles feel wider through the forefoot than typical fashion sandals. Very narrow feet can find them a little loose, so a back-strap style may suit better than a basic flip-flop.

Do FitFlop sandals need breaking in?

Most pairs feel cushioned from the first wear thanks to the Microwobbleboard sole. Leather straps on toe-post styles can feel firm at first and may need a few short wears to soften, so we would not judge the fit from a single five-minute try-on.

Can FitFlop help with plantar fasciitis?

Many customers with sore heels swear by FitFlop, particularly the Microwobbleboard sandals and cushioned trainers. They are not medical footwear, but the arch contour and shock absorption often ease day-to-day discomfort. The Rally trainer is one style we hear praised for walking distances.

How should I clean FitFlop sandals?

For unlined footbeds, a damp cloth or soft toothbrush with a little mild soap works well. Do not put them through the washing machine or soak them completely, as that can damage the cushioned midsole. Wipe leather uppers gently and let them air dry away from direct heat.

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