SIZE GUIDE

Stand on a sheet of paper with your heel against a wall, mark the tip of your longest toe, and measure that distance. Shop by the millimetre figure rather than converting from another brand's size, and if you fall between two rows, choose the larger size.

The Unisex (US) column gives the men's and women's equivalents for styles built on our shared unisex footbed — M3/W5 means men's 3 or women's 5.

Stand on a sheet of paper with your heel against a wall, mark the tip of your longest toe, and measure that distance. Shop by the millimetre figure rather than converting from another brand's size, and if you fall between two rows, choose the larger size.

Select slide and sport styles extend up to men's 20. Not every style is produced in every size listed, so confirm availability on the style you are ordering.

Our styles are made in whole sizes, and some styles add half sizes. If you normally wear a half size and it is offered in the style you like, order your half size for the most comfortable fit.

If a half size is not available, sizing up to the nearest whole size generally gives the best fit. All styles run true to size unless the product page states otherwise.

Every style is built on a medium width, with one exception: the OOlala thong sandal is narrow. Wide widths are not offered.

On open-backed styles — slides, thongs, clogs, and slippers — the footbed is unisex, so the men's and women's versions are the same width. On enclosed styles such as shoes and boots, each is built to its own gender's medium width (men's D, women's B), so the men's version fits slightly differently from the women's at the equivalent size.

Customers who need extra room in the forefoot most often prefer the OOahh Sport Flex, whose adjustable closure also suits higher insteps and arches, and the OOmy Stride, which has a roomier toe box and an external lacing system.

Customers with narrower feet tend to prefer the OOlala thong, OOcloog, or OOmy Zen for a more secure fit.

The letter next to a size shows which gender that size is cut for — for example a women's 8 or a men's 6. On unisex products, W always means women's and M always means men's. Unisex styles list both equivalents together, such as M5W7 or M10W12.

Important: in these size labels, M and W refer to men's and women's, not to medium and wide.

Our footwear needs minimal to no breaking in. The foam and footbed are designed so you can walk with your most natural gait from the start.

It may take a few minutes of moving around to settle into the feel underfoot — that is expected. Recovery footwear has a different purpose than active footwear, so the ride will feel unlike a standard sneaker or sandal.

If you are struggling to adapt, or the fit does not feel right, contact customer care and they will help you confirm you have the right size and style.