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1000NEPTUNM3W5

OOFOS Unisex OOriginal Thong Sandal - Neptune Blue

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: Neptune Blue
Neptune Blue
Size: US M3/W5 EU 36
OOFOS Unisex OOriginal Thong Sandal - Neptune Blue Neptune Blue US M3/W5 EU 36

Neptune Blue / US M3/W5 EU 36

2026-07-14 2026-07-21

The OOFOS story begins with the OOriginal Sandal. This combination of sleek design and revolutionary OOfoam™ recovery technology lays the groundwork for all future styles and models.

OOFOS · Feel the OO

Recovery is a feeling

You're looking at the OOFOS Unisex OOriginal Thong Sandal - Neptune Blue.

Founded in 2011, OOFOS pioneered the recovery-footwear category — shoes engineered to absorb impact and take stress off your ankles, knees, hips and lower back after training, so you bounce back faster.

37%more impact absorbed than traditional footwear foam
47%less energy exertion in the ankles

OOfoam™ absorbs impact so you recover faster.

Figures from OOFOS testing vs traditional footwear foam.

Why it works

The perfect blend of cushion and stability

OOfoam™

Proprietary recovery foam that soaks up impact and gives your body a break.

Patented footbed

Cradles and supports the arch, letting your feet and joints unwind.

Cushion + stability

Soft underfoot without the wobble — supportive enough to keep moving in.

Backed by the 30-day OOFOS Comfort Guarantee

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