OOFOS Size & Fit Guide

Unisex sizing: women’s = men’s + 2 · Wear a half size? Women size up, men size down

Find your OOFOS size with OOFOS’s official unisex size chart and half-size advice — or stop in for a fitting at our Kettering, Ohio store.

Shop OOFOS →

How it fits

Many OOFOS styles — like the OOahh slide, OOriginal sandal and OOcloog — are unisex. They’re labeled with both sizes: a women’s size is always two sizes larger than the men’s (for example, M6/W8 fits a men’s 6 or a women’s 8).

The OOlala is a women’s style, built on a narrower last than the OOriginal and OOahh.

Half sizes

If you normally wear a whole size, order that same whole size.

If you normally wear a half size: women, order a half size up; men, order a half size down.

Some OOFOS shoes, like the OOmg, come in half sizes.

Unisex size chart

US Men US Women UK Men UK Women EU
2 4 1 2 35
3 5 2 3 36
4 6 3 4 37
5 7 4 5 38
6 8 5 6 39
7 9 6 7 40
8 10 7 8 41
9 11 8 9 42
10 12 9 10 43
11 13 10 11 44
12 14 11 12 45
13 15 12 13 46
14 16 13 14 47
15 17 14 15 48

Need help? We measure every customer with a Brannock device at our Kettering store. Stop in for a fitting, or call us at 937.298.1801 and we’ll help you choose. Ready to shop? Shop all OOFOS →

Source: OOFOS size conversion chart and sizing guidance (OOFOS) · Last checked October 2026