Use this chart to find your conversion, or switch tabs above
to our fit guide to find your recommended fit.

US Size
UK
EU
Length (CM)
6M
1
17
10
12M
2
18
10.5
18M
3
19
11.5
24M
4
20
12.5
4
3
19
11.5
5
4
20/21
12.5
6
5
22
13.5
7
6
23
14.5
8
7
24
15
9
8
25/26
16
10
9
27/28
17
11
10
29
18
12
11
30
18.5
13
12
31
19.5
BIG KID 1
13
32/33
20
BIG KID 2
1
34
21
BIG KID 3
2
35
22
BIG KID 4
3
36
22.5
BIG KID 5
4
37
23.5
BIG KID 6
5
38
24.5
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Big Kids' Rio

$40.00

Please choose a size!

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.

  • REVIEW SNAPSHOT®

    by PowerReviews
    KEENBig Kids' Rio
     
    5.0

    (based on 1 review)

    Ratings Distribution

    • 5 Stars

       

      (1)

    • 4 Stars

       

      (0)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    Reviewed by 1 customer

    Displaying review 1

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    (3 of 3 customers found this review helpful)

     
    5.0

    Just What He Needed!

    By 

    from Undisclosed

    Site Member

    Comments about KEEN Big Kids' Rio:

    This sandal has been fantastic for my 10 year old boy who is very outdoorsy and active! They lasted him 2 years (mainly worn during spring and summer) and he has finally outgrown them. I bought them a bit big for him, but he just cinched the cord down a little tighter and instantly loved them. He got a lot of compliments on them, too. They are lightweight and have lots of ventilation--kept his feet from making them too stinky. They are perfect for walking, light hiking, playing in hot weather, mud (easy to rinse out), in and out of the water (they drain & dry very quickly). We found them to be true to size. I hope Keen will continue this style and bring back more colors!

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Wilderness is not a luxury
but necessity of the human spirit.

– Edward Abbey

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