Here’s the process:

1. Find a ruler, yardstick or tape measure, preferably with metric units, but either metric or imperial units will work.  Make sure that zero is on the end of the ruler.
2. Put on a pair of light weight socks, like the socks you will be skiing in.
3. Place the ruler against the wall with zero toward the wall.
4. Stand on the ruler with your heels against the wall and have another individual determine how long your foot is to the longest toe. 
5. Make the same measurement of your other foot.
6. Note how long your longest foot is.

After you have determined what length your longest foot is, refer to the chart below and determine which size will be long enough to accommodate your longest foot.  This will be your Apex boot size.  If you are in doubt about your size go to the larger size. 

Trust us! Downsizing in the Apex boot just does not work!

Longest Foot Not Longer Than

MONDO	Length Imperial	Length Metric	Men’s US	Women’s US	Europe	U.K.
23	9	230	-	5.5	36	4
24	9 1/2	240	6.5	7	38	5
25	9 3/4	250	7.5	8.5	39	6.5
26	10 1/4	260	8.5	9.5	41	7.5
27	10 3/4	270	9.5	10.5	42	8.5
28	11 1/4	280	10.5	11.5	43	9.5
29	11 1/2	290	11.5	-	45.5	10.5
30	11 7/8	300	12.5	-	46	11.5

Because of the Open Chassis design, the Boa Closure System, and the fact that the instep height is infinitely adjustable, the boot will fit a surprisingly wide range of foot shapes without customizing.  We can do additional fitting between the liner and walking boot, identical to fitting a traditional alpine shell and liner.  We use felt or firm foam padding to make the boot narrower in specific areas or to customize the forward lean. 

It is also possible to heat fit the inner liner, but we have found this not to be required by most people.  If you want to have this service performed, the process is the same as with any other heat moldable inner boot.  The dealer or service location will heat up the inner liner only, and have you put on the liner, walking boot and chassis and allow the liner to cool for up to 30 minutes.   (This process should not be done at home; it should only be done by a qualified ski boot fitting professional.)  If you order online, you will receive a boot fitting certificate that should cover the cost of fitting at most ski shops.  If your shop will not perform the service for you, please call us and we will direct you to a shop that will fit your boots.  This certificate will not cover the cost of any custom insoles or binding adjustment, but it should cover routine fitting and heat molding.