Use this chart to find your size conversion.

US Size UK EU JP CM
LENGTH
7 6 39.5 25 24.4
7.5 6.5 40 25.5 24.8
8 7 40.5 26 25.4
8.5 7.5 41 26.5 25.7
9 8 42 27 26
9.5 8.5 42.5 27.5 26.7
10 9 43 28 27
10.5 9.5 44 28.5 27.3
11 10 44.5 29 27.9
11.5 10.5 45 29.5 28.3
12 11 46 30 28.6
13 12 47 31 29.4
14 13 47.5 32 30.2
15 14 48 33 31
16 15 48.5 34 31.8
17 16 49 35 32.6
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Men's Clearwater CNX

$100.00
Free KEEN sunglasses
With purchases $75+

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  • Fit Tip: Most customers find this style is true to size!
    Size Guide
Please choose a size! Please choose an inseam!

Get flexibility, fit and protection in a lightweight sandal, designed to make every step a natural connection. Bungee lacing allows a customized fit, and a contoured arch cradles and supports the foot.

  • 4mm midsole drop
  • Contoured arch for added midfoot support
  • Metatarsal ridge for natural underfoot support
  • Multi directional flex grooves for natural flexibility and improved ground contact
  • PFC Free materials
  • Secure fit lace capture system
  • TPU stability shank

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

Live Chat

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

KEEN comfort and protection, lightened up.

  • Get flexibility, fit and protection in a lightweight sandal, designed to make every step a natural connection. Bungee lacing allows a customized fit, and a contoured arch cradles and supports the foot.
  • CNX
    We’ve shaved an entire line of footwear down to 10 oz. each, but kept the protection that made us famous. It’s addition by subtraction.
  • 4mm midsole drop
  • Contoured arch for added midfoot support
  • Metatarsal ridge for natural underfoot support
  • Multi directional flex grooves for natural flexibility and improved ground contact
  • PFC Free materials
  • Secure fit lace capture system
  • TPU stability shank
Material
  • Washable polyester webbing upper
  • Non-marking rubber outsole with razor siping
  • PU midsole
  • Hydrophobic mesh lining
Weight
9.0 oz / 255.1 g
Care

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

  • Simply the best water shoe

    5

    My husband and I live our Keens for kayaking. They offer the best traction on slippery rocks and don't get sucked off if you step in mud. This is our second pair ea. The first pair lasted 6 years of rough wear.

    New York

    true

    Comfy beach shoes

    4

    I manage a beach in northeast Ohio and foot protection is important to us. These shoes cover the toes and react well to all surfaces from sand to rocks to the trails. Dry fast and wear well.

    Fairport Harbor, Ohio

    true

    Top notch product

    4

    Very comfortable and appealing

    Arizona

    true

    Just as nice as my previous, worn-out pair.

    5

    I wear 'em whenever I want to go without socks & shoes. I really enjoy how comfortable they are. How supportive yet very lightweight. Good traction. Gonna wear 'em today when I go out flat water lake kayaking.

    Gunnison Colorado

    true

    Need to return

    1

    These were so short and narrow that at first we thought they were women's shoes.

    Washington, DC

    false

    I would buy these again but I don't think they'll wear out!

    5

    My first hard use of the CNX sandals was a 7 day cruise of Rhode Island. On board off board, walking around docks, dirt paths, streets, brick sidewalks and cobblestone roads and I never felt an unsure step. Comfortable, adjustable fit, easy off and on so the only down side for Keen could be that since I only them in three seasons I may not be buying another pair for 10-12 years!

    Colorado

    true

    Too narrow

    4

    Definitely more narrow, if you are a narrow D then this is for you plus size runs small, go a size bigger. My foot is too snug. I bought a different 5 star keen sandal and it fits great! 3-1/2 star rating.

    Olympia, WA

    false

    Hurt my feet

    1

    Are you supposed to wear these with socks?! I put these one to go camping n I wasnt walking much, n I got awfully blisters on the tops of my toes from these sandals...I think I'm gonna take them back to dulluth

    Anchorage, ak

    Very nice but a bit narrow

    4

    I picked up my first Newports in the big warehouse sale a few years ago and wanted a second pair of Keen sandals. Ordered these. Beautiful and light but a bit narrow. The Newports fit perfectly from day one. I'm hoping these loosen up with use-- hurt my left little for with a few hours wear.

    West Linn,Ore

    true

    Great shoe

    4

    Purchased these for my husband. He really likes them but they do run a size small

    PA

    true

    M-CLEARWATER-CNX

    3.9 136

    72.7