How to measure your foot length:
  • 1. Place a piece of paper against a wall.
  • 2. Stand on it with your heel against the wall.
  • 3. Mark where your longest toe ends (both feet).
  • 4. Measure from the edge of the paper to both marks in centimeters.
  • 5. Use the longest foot measurement and match it up to our size chart.
Size Chart
US UK EU CM (JP) HEEL-TO-TOE
in centimeters
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
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Men's Sandals
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Men's UNEEK O2
Men's UNEEK O2 in BLACK/BLACK - large view.
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Men's UNEEK O2

$90.00 $43.99
EXTRA 20% OFF SALE STYLES THRU 10/7
  • Color: BLACK/BLACK 1 Color
  • Size Guide
    Size:
Description
Features & Care
Shipping & Returns
Find your fit. 30-day trial. Love the planet.
  • Tool Kit Tab 1 Measure your foot
  • Tool Kit Tab 2 Chat with a KEEN fitter
  • Tool Kit Tab 3 30-day trial, give it a spin outside!
  • Tool Kit Tab 4 Reduce your footprint
 
Men's UNEEK O2
Men's UNEEK O2

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.

Men's UNEEK O2
Men's UNEEK O2
Men's UNEEK O2
Men's UNEEK O2
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Men's UNEEK O2
Men's UNEEK O2
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Features

  • 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

Technologies

  • Metatomical Footbed Design
    This internal support mechanism is anatomically engineered to provide excellent arch support and cradle the natural contours of the foot.

Care

Hand wash with cold water and mild soap. Remove excess dirt/spot clean with a stiff brush or soft cloth. Do not machine wash. Allow to air dry away from heat.

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.

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Free shipping on orders over $100. Exclusions apply for Pro and ID.ME users

Free return shipping for all orders within the lower 48 states. You'll recieve a free return label that will be good for 30 days from your order date. Visit our Returns Portal

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Men's UNEEK O2

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