Some important sizing considertions to keep in mind when finding your correct sport sandal size:

Heel position - The heel of the foot should be centred over heel area of the sandal, there should be approximately 1 cm between the back of the heel and the back of the sandal.

Toe clearance - The longest toes should be 1 cm from the front of the sandal, approximately the width of your little finger. Check this is the case when weight is on the sandal.

Tightening - Do up the forefoot strap first, not too tight. Put an index finger between the top of the foot and the strap and adjust the Velcro closure to ensure a snug fit. Remove your finger and the strap should be about right. Now do up the ankle strap, use the same technique to ensure it is not too tight.

If you have not worn sandals for a while your feet may be soft. Give your feet a few days to get used to being in the fresh air again - so don't do up your straps too tightly at first!

Birki's Sizing Information

Converting Sizes and Finding the Proper Fit - From American Sizes to European Sizes

Birki's Footwear is manufactured using a European size measurement. This system uses whole sizes only because the increments, from one size to the next, are only about 1/4 inch.

The quickest way to figure out your Birki's European size would be to add:

31 to your American size for women
34 to your American size for men
18 to your American size for kids

Example: If you wear a ladies 8, add 30. Your Birkenstock size should be 38. The catalog chart doesn't always agree, but we have found these numbers to work best.

A lot of the fully waterproof Birki's run short, so you may need a larger size.

* Go up a size in the plastic and polyurethane models.

Chaco Sizing Information

If you wear half sizes, when choosing to go up or down, two factors will influence your decision. First, is the way the footbed contours fit your arch. Try on both sizes and see which arch matches yours the best. If they both feel fine, size up if you like a bumper to protect your toes (and wear socks a lot) or down if you like a trim, compact fit.

Keen Sizing Information

The men's shoes are built on a D width last, the women's are built on a B width last. They run fairly true to size, but some find them a little short and go up a half size.

Keen Footwear Shoes come in the following sizes:

Youth:10-13 including half sizes.
Kids: 1-7 including half sizes
Men's: 7-14 half size 7-12 then, 12, 13 and in the Newport and Newport H2 in 14
Women's: 6-11 including half sizes and the Newport, and Jamestown are also available in 5/5.5.