Sizing questions are best answered at an authorised stockist. You may find certain styles in the same size have a slightly different fit and feel. We also hesitate to suggest a specific size since there is no way to take into account all the important issues directly effecting how a shoe fits. Nobody knows your feet like you do. Your fit history reveals much about how your shoes fit. Take this history into consideration as a starting point with KEEN shoes. As a general rule, go up 1/2 size from your standard shoe size then work from there. A few more issues you may want to consider: KEEN with the eVent or KEEN.DRY water resistant membrane tends to have less interior volume in the toe box area of the shoe, so sizing up to some extent is sometimes necessary. Also note what time of the day you try shoes on for fit. Later in the day is best since your feet tend to be at their widest. 

1. Place a blank 8.5 x 11" piece of paper on the floor with the shorter edge touching a wall.
2. Stand on the paper with your heel slightly touching the wall.
3. Мark the end of the longest toe on the paper (you might need help so you can make an accurate straight down mark, at the tip of the toe.
4. Do the same for the other foot.
5. Measure from the wall (or edge of the paper) to the mark in centimetres.
6. Take the larger of the two measurements and use the conversion chart to find your correct shoe size.

Foot measuring tips:

- Measure with your preferred (average) sock on. If you plan on wearing a below or above average thick sock, please take that into considerations when purchasing the shoe or boot.

- Since feet always swell during the day, it is a good idea to measure and try shoes on later in the day, when your feet are at their largest.

- Feet typically get bigger with age. Try to measure your feet every year.

After you have measured your foot, here are some tips for finding the right fit:

- Your left and right feet may differ in length or width. Be sure to measure and try shoes on both feet, and always buy shoes to fit your larger foot.

- If your feet seem between sizes, and you cannot decide which size to select, we suggest choosing the larger size. You can adjust for a more personal fit with socks, insoles, or a different lacing pattern.

Note: Because the foot is three-dimensional, any two-dimensional measuring tool, such as a ruler or Brannock device®, can only approximate your shoe size. Manufacturers use different lasts to construct their shoes, and sizing may vary accordingly.
For best results, visit your local KEEN reatiler to get measured and try on the footwear.

CM is the size used in Japan. To measure your foot, you should measure in centimeters and refer to the heel-to-toe size in centimeters and cross reference your size for your region.

KEEN shoes have a bit wider toe box than other shoes, but our actual shoe widths are standard. Our women's shoes come only in a 'B' width, while our men's feature a 'D' width. Note that each style fits according to intended use. Trail running and hiking styles have a more snug performance fit, whereas BLVD category styles built for urban trekking have a more accommodating fit. We can’t restate enough the best method of arriving at the perfect size; slip shoes on your feet at a local dealer if you have the opportunity. Also remember that any KEEN style featuring the adjustable elastic bungee lace closure accommodates various foot widths.

The Original Fit can be found in the Newport, Targhee II, Austin, and Presidio. We also have select styles like the Terradora and Venture that offer a Contoured Fit that's more true to a traditional regular width.

Yes. The Newport, Newport H2, Venice, Venice H2 and Arroyo all feature an adjustable bungee cord lacing system. The bungee lace system cinches securely over the top of the foot. We encourage you to try several pair to determine which works best for you.

Sometimes stockists do not carry the entire size run of all our styles. In this case, most stockists are more than happy to place a special order for you in the size you need. We do have a few styles always available in US men’s size 15, plus a few new ones. Determine which will best meet your needs and have a local KEEN dealer confirm availability and place a special order for you: Newport leather sandal, Venice Sandal, Newport H2 sandal, Venice H2 sandal, Targhee II Mid, Targhee II.

KEEN sizing for children is broken down into three categories: INFANT = size range 4-7; TODDLER = size range 8-13; YOUTH = size range 1-6. After youth size 6, the next size is US men's size 7.0.