Keen Sandals, Shoes, Boots & Footwear Size Chart, Guide & Fit Advice

Men's Keen shoe sizes are correct if you use Mondo, US or UK sizing.

Women's Keen Mondo and US shoe sizes are correct.

Women's Keen UK shoe sizes are a half size too big.

Keen's 'translation' to EU sizes is unreliable. There is no difference between men's and women's EU sizes but, according to the data in the Keen table below, there is! 

We therefore recommend:

    ●  If you have owned Keen footwear before, simply order the same size again.

    ●  Use Mondo US or men's UK sizing.

    ●  If using UK women's sizing, choose a half size smaller than your normal shoe size.

         If your normal shoe size is UK 6, buy a Keen 5.5 = Mondo 25

    ●  Ignore Keen's EU sizing. 

         If you prefer to use EU sizing we have added an "EU Absolute" column showing the correct conversion from Mondopoint.  EU shoe sizes increase in 3.333mm increments - which is why, when presented to a single decimal point, they should always end with .0, .3 or .7 and never with .5.  

Keen Shoe & Footwear Sizes

21.02 3 33 34 
21.52.5 3.5 34 34.7
22.0 32.5 45353535.3
22.53.5 3 4.55.5 3635.536
23.03.5 5636.53636.7
23.54.5 4 5.56.5 373737.3
24.0 54.5 67 37.537.538 
24.5 5.55 6.57.5383838.7
27.58.5 89.5 10.542.54142.7
28.09 10 43 43.3
28.59.5 10.5 44 44 
29.010 11 44.5 44.7
29.510.5 11.5 45 45.3
30.011 12 46  46
31.012 13 47 47.3
32.013 14 47.5 48.7
33.014 15 48 50
34.015 16 48.5 51.3
35.016 17 49 52.7

 Source: Keen & Absolute-Snow

Absolute Confidence

We are experts on shoe sizing and are confident in the information we have provided because we:

Tick  Have been selling shoes in our Sports Shop for years.

Tick  Carefully research sizes for every brand we sell.

Tick  Are very proud of our extremely low returns rate.

Tick  Have been selling footwear online since 2004.

How to Measure Your Mondo Size

The Mondopoint size of a shoe is the length of the shoe's insole measured in cm. To work out your size, the best way is to look it up on a pair shoes which fit you well or to measure the length of the insole on your best fitting pair of shoes. Remove the insole and measure, using a steal measuring tape, from the extreme tip of the toe to the extreme tip of the heel. The measurement will ALWAYS be exact to the nearest 0.5cm. You will never get 30.2 or 28.8; it will always be 30.0 exactly. This is your mondo shoe or boot size. Checkout this video to have Adam explain it all in plain English.  He is using a snowboard boot but the same principle applies to all footwear.

Still not sure what size to get?

Buy a few pairs to try at home. We offer:

Tick  FREE Delivery on most orders to most destinations.

Tick  Low Cost Returns within the UK.

Additional Help & Advice

Tick  Browse our Advice Centre for more buying guides.

Tick  Email any time.

Tick  Phone during normal Shop Hours

Tick  Visit our Mountain Sports ShopAddress