Use this chart to find your size conversion.

US Size UK EU JP CM
LENGTH
5 2.5 35 22 21.6
5.5 3 35.5 22.5 22.2
6 3.5 36 23 22.5
6.5 4 37 23.5 23
7 4.5 37.5 24 23.5
7.5 5 38 24.5 23.8
8 5.5 38.5 25 24.1
8.5 6 39 25.5 24.6
9 6.5 39.5 26 25.1
9.5 7 40 26.5 25.4
10 7.5 40.5 27 25.9
10.5 8 41 27.5 26.2
11 8.5 42 28 26.7
12 9 43 29 27.6
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Women's UNEEK O2

$90.00
Free KEEN sunglasses
With purchases $75+

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  • Fit Tip: This style is running a 1/2 size small. We suggest ordering a 1/2 size larger than your usual size!
    Size Guide
Out of stock
Please choose a size! Please choose an inseam!

Innovative two-cord construction adapts effortlessly to the foot, creating a customized fit and a free-moving feel. A lightly cushioned heel-back adds soft support, and an updated sole makes it ultralight.

  • Cleansport NXT™ for natural odor control
  • Free moving cord junctions allow for upper to adjust to foot
  • Secure fit lace capture system

We know shoes get dirty! We recommend hand washing these with cold water and a mild soap. To remove excess dirt or spot clean, use a stiff brush or soft cloth. Do not machine wash. Allow to air dry away from heat.

Live Chat

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

Sandal in the front, sneaker in the back.

  • Innovative two-cord construction adapts effortlessly to the foot, creating a customized fit and a free-moving feel. A lightly cushioned heel-back adds soft support, and an updated sole makes it ultralight.
  • Metatomical Footbed Design
    This internal support mechanism is anatomically engineered to provide excellent arch support and cradle the natural contours of the foot.
  • Cleansport NXT™ for natural odor control
  • Free moving cord junctions allow for upper to adjust to foot
  • Secure fit lace capture system
Material
  • Lightweight EVA midsole
  • Fully enclosed heel with soft, quick-dry lining
  • Metatomical EVA footbed
Care

We know shoes get dirty! We recommend hand washing these with cold water and a mild soap. To remove excess dirt or spot clean, use a stiff brush or soft cloth. Do not machine wash. Allow to air dry away from heat.

  • I LOVE my Keens

    5

    I bought these to wear at work. I have the Uneek with the open heel also and they are the most comfortable shoe I have ever bought. I can't wear the open heel at work so I bought the Uneek with the closed heel. I absolutely love them and now my feet can breathe at work. They are very comfortable and don't hurt my feet at all. I work on a concrete floor 10hrs a day and have had foot surgery on both feet. These shoes are wonderful. I also have a pair of Keen boots that I wear in the winter. I'm sold on Keen comfort and quality.

    Indianapolis, Indiana

    true

    I will buy this product again

    5

    everything expected

    Select State

    true

    I love these!

    5

    I like the fact they are not too dressy and not too casual just in between!

    Collegeville, Pa

    true

    Very comfortable shoe.

    5

    Using these to walk around... not hiking. Super comfy and definitely a half size small. Thankfully, your site mentioned that so I was able to get the correct size when ordering.

    Pennsylvania

    true

    Great Support in a Fun and Functional Shoe!!

    5

    It is fantastic that I can wear these as they have ample support and I don't have to wear my special orthotics to be able to walk far. Kuddos to Keen for a dream shoe!

    IN

    true

    Love this shoe!

    5

    Very comfortable and stylish.

    Murfreesboro, tennessee

    true

    I love these shoes!

    5

    They are so comfortable and go with everything! I absolutely live them!

    Jacksonville, FL

    true

    Yes, I would buy these shoes again

    5

    They are the most comfortable shoe I have worn.

    Kansas

    true

    Comfy!

    5

    Really like these shoes. Very comfy - like surrounding your foot in pillows. Easy to get on and off. Very supportive.

    Waukesha Wi

    true

    Love the look and feel of the shoe.

    4

    It is a dressier alternative to my KEEN Whispers. Note they do run small!! I have never worn a size 8 shoe in my life, but this one requires a half to whole size larger than normal.

    Charleston, SC

    true

    W-UNEEK-O2

    4.6 88

    93.5