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1000PRIMROM4W6

OOFOS Unisex OOriginal Thong Sandal - Primrose

Size Guide
Size Guide - Oofos

Men

  • If you normally wear a whole size: Order the same whole size OOFOS.
  • If you normally wear a half size: Order a half size DOWN for best fit.

Women

  • If you normally wear a whole size: Order the same whole size OOFOS.
  • If you normally wear a half size: Order a half size UP for best fit.

Note: All sizes displayed on oofos.com.hk use EU Sizing System.

Foot Length US M UK M US W UK W EU
222mm 2 1 4 2 35
228mm 3 2 5 3 36
235mm 4 3 6 4 37
241mm 5 4 7 5 38
248mm 6 5 8 6 39
254mm 7 6 9 7 40
260mm 8 7 10 8 41
267mm 9 8 11 9 42
273mm 10 9 12 10 43
279mm 11 10 13 11 44
286mm 12 11 14 12 45
292mm 13 12 15 13 46
302mm 14 13 16 14 47
Colour: Primrose
Primrose
Size: US M4/W6 EU 37

3 items left

2026-04-18 2026-04-25

Features & Benefits

  • A graphic of waves with arrows pointing up.Impact-absorbing OOfoam™ technology in OOFOS’ advanced footbed geometry.
  • A semi-circle with dots completing the full circleRounded, cupped heel designed to enhance impact-absorption and stability with every step.
  • Lightweight, flexible & packable for ultimate travel ability.
  • A graphic of a washing machineMachine Washable. Air Dry.

Details

THE ORIGINAL RECOVERY FOOTWEAR™

The Sandal that started it all. With its sleek design and OOfoam recovery technology, the OOriginal Sandal was proven to be so effective, its spirit lived on in all our later styles and models. And with more colors than ever to choose from, you can flex your recovery leaving the gym as much as you can at a backyard hangout with friends.

Why to Buy

  • American Podiatric Medial Association Badge

    Awarded an American Podiatric Medical Association (APMA) Seal of Acceptance for promoting foot health

    9 out of 10 customers surveyed felt relief

  • A ribbon with a star in the middle.

    More than 10 million pairs sold
    with 190k+ 5-star reviews

  • A graphic of a Trophy

    Worn by the Pros
    Chosen by athletes in all major US pro leagues

  • A ribbon graphic.

    Project Pink: Over $6M Donated
    A percentage of every OOFOS.com purchase goes to patient care and cancer research