Use this chart to find your size conversion.

JP Size US UK EU CM LENGTH
10 6M 1 17 9.5
10.5 12M 2 18 10.5
11.5 18M 3 19 11.4
12.5 24M 4 20 12.1
11.5 4 3 19 11.4
12.5 5 4 20/21 12.1
13.5 6 5 22 13
14.5 7 6 23 14
15 8 7 24 14.6
16 9 8 25/26 15.6
17 10 9 27/28 16.5
18 11 10 29 17.1
18.5 12 11 30 18.1
19.5 13 12 31 19.1
20 BIG KID 1 13 32/33 19.7
21 BIG KID 2 1 34 20.6
22 BIG KID 3 2 35 21.6
22.5 BIG KID 4 3 36 22.2
23.5 BIG KID 5 4 37 23.2
25.5 BIG KID 7 6 39 24.8
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Big Kids' Rio

¥ 4,860

Please choose a size! Please choose an inseam!

A fun sandal with a comfortable, flexible fit. Built-in arch support adds stability, and the bungee closure system keeps them on kids' feet. They're easy to clean—you can rinse dirt and mud right off.

  • Contoured arch for added midfoot support
  • Easy slip-on design
  • Lightweight injection EVA construction
  • Secure fit lace capture system

All KEEN water sandals are machine washable. Use a small amount of detergent, wash on gentle cycle and air dry.

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Chat with a KEEN Expert for style advice and fit recommendations.

Built to make a splash, in the water or out.

  • A fun sandal with a comfortable, flexible fit. Built-in arch support adds stability, and the bungee closure system keeps them on kids' feet. They're easy to clean—you can rinse dirt and mud right off.
  • Contoured arch for added midfoot support
  • Easy slip-on design
  • Lightweight injection EVA construction
  • Secure fit lace capture system
Material
  • Flexible upper
  • Non-marking rubber outsole
Care

All KEEN water sandals are machine washable. Use a small amount of detergent, wash on gentle cycle and air dry.

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