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 UNEEK O2

$90.00

  • Style #1018709
  • Fit Tip: This style is running a 1/2 size small. We suggest ordering a 1/2 size larger than your usual size! Fit Guide
Please choose a size!

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.

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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.

  • REVIEW SNAPSHOT®

    by PowerReviews
    KEENMen's UNEEK O2
     
    4.7

    (based on 35 reviews)

    Ratings Distribution

    • 5 Stars

       

      (27)

    • 4 Stars

       

      (7)

    • 3 Stars

       

      (1)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    100%

    of respondents would recommend this to a friend.

    Pros

    No Pros

    Cons

    No Cons

    Best Uses

    No Best Uses
      • Was this a gift?:
      • No (4)

    Reviewed by 35 customers

    Displaying reviews 1-10

    Back to top

    Previous | Next »

     
    3.0

    not a useable shoe for me

    By 

    from undisclosed

    Verified Buyer

    Comments about KEEN Men's UNEEK O2:

    too low an instep. not enough support from sde walls

     
    5.0

    Wonderful feel

    By 

    from undisclosed

    Verified Buyer

    Comments about Men's UNEEK O2:

    Very, very comfortable. Seems to mold around your feet.

     
    5.0

    I would definitely buy again

    By 

    from undisclosed

    Verified Buyer

    Comments about KEEN Men's UNEEK O2:

    Way more comfortable then I thought would be

    (1 of 1 customers found this review helpful)

     
    5.0

    Most Comfortable Shoes In The House

    By 

    from undisclosed

    Verified Buyer

    Comments about Men's UNEEK O2:

    I just can't say enough good things about these shoes. They're cool, they're extremely comfortable, and they've got that nerdy style that people love. This is my second pair of Uneeks (fifth pair of Keens) and the footbed seems considerably more supportive than the pair I purchased last year. (To be fair, last year's pair is probably a half size too big, which is an argument for first having your foot measured at a shoe store that sells Keens before ordering online. Of course, decorum suggests one should also probably buy a pair from that shoe store, but, hey - more Keens!). For knocking around town, walking through the park, and just hanging out these are the perfect shoes!

     
    5.0

    Wonderful comfy shoe

    By 

    from undisclosed

    Verified Buyer

    Comments about KEEN Men's UNEEK O2:

    Very comfortable a little tight on the 1st wear loosened up perfectly love these shoes and looking forward to summer in them. Would definitely but again.

     
    5.0

    greatest shoe ever

    By 

    from undisclosed

    Verified Buyer

    Comments about KEEN Men's UNEEK O2:

    great feeling shoe! never had a shoe feel so good ever!

     
    5.0

    UNEEK'S are the BEST

    By 

    from undisclosed

    Verified Buyer

    Comments about KEEN Men's UNEEK O2:

    I should really stop leaving reviews because I've purchased at least 4 pair of UNEEK's for my 28 and 32 year old sons. Each pair and style, scores big time. Comfort, ease of wear and the style. UNEEK'S work for sport and casual.

     
    5.0

    Thank You Keen!

    By 

    from undisclosed

    Verified Buyer

    Comments about KEEN Men's UNEEK O2:

    The customer service was outstanding. Very happy with the shoes ,and will definitely be returning for more.

     
    5.0

    Yes I would

    By 

    from undisclosed

    Verified Buyer

    Comments about KEEN Men's UNEEK O2:

    Very very comfortable love the style

     
    5.0

    I would buy this shoe again. Very comfortable.

    By 

    from undisclosed

    Verified Buyer

    Comments about Men's UNEEK O2:

    This is my second pair of Uneek 02. I love them. I am waiting for the white with the black heel to be back in stock. I will order those when they become available again.

    Displaying reviews 1-10

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    Previous | Next »

     

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

– Edward Abbey

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