Ski Boots Size Guide & Buying Tips

What is the right size for me?

To find the perfect fit in a ski boot, HEAD advises you to focus on two important measurements: lenght and width.


Skiboot length

Ski boots are measured on a MONDOPOINT scale, which is based on the length in centimeters of your foot. The measurement is the exact length of a foot measured from heel to toe. 

Ski Boots Men's Sizes

38.5 6.5 5.5 24.5
39 7 6 25
40 7.5 6.5 25.5
40.5 8 7 26
41 8.5 7.5 26.5
42 9 8 27
42.5 9.5 8.5 27.5
43 10 9 28
44 10.5 9.5 28.5
44.5 11 10 29
45 11.5 10.5 29.5
46 12 11 30
46.5 12.5 11.5 30.5
47 13 12 31.5
48.5 14 13 32


Ski Boots Women's Sizes

36 5.5 3.5 22.5
36.5 6 4 23
37 6.5 4.5 23.5
38 7 5 24
38.5 7.5 5.5 24.5
39 8 6 25
40 8.5 6.5 25.5
40.5 9 7 26
41 9.5 7.5 26.5
42 10 8 27
42.5   8.5 27.5
43 11 9 28


Ski Boots Junior Sizes

31.5 13.5 13K 19.5
32 1 13.5K 20
33 2 1 20.5
33.5 2.5 1.5 21
34 3 2 21.5
34.5 3.5 2.5 22
35 4 3 22.5
36 4.5 3.5 23
36.5 5 4 23.5
37 5.5 4.5 24
38 6 5 24.5
38.5 6.5 5.5 25
39 7 6 25.5
40 7.5 6.5 26


Ski Boots Kid's Sizes

27 10 9.5K 16
27.5 10.5 10K 16.5
28 11 10.5K 17
29 11.5 11K 17.5
30 12 11.5K 18
30.5 12.5 12K 18.5
31 13 12.5K 19
31.5 13.5 13K 19.5
32 1 13.5K 20
33 2 1 20.5
33.5 2.5 1.5 21
34 3 2 21.5
34.5 3.5 2.5 22
35 4 3 22.5


Be sure that the bootfitter who is assisting you is using a measuring device that is MONDOPOINT specific, such as the HEAD foot measuring device.

It’s important to remember that:

Ski socks have a big influence on the skiing performance and the fit of the boot. Thicker socks generally limit blood circulation and provide less warmth by trapping moisture around the foot. A thinner sock will offer greater sensitivity and precision, while managing moisture better and keeping the foot dry. The sock should be dry, thin, tight and preferably made of a synthetic/wool blend. Step in your boot and while you are standing straight wiggle your toes. You should have minimum space between the end of your toes and the end of the boot.


HEAD offers, in all his line, five different lasts to ensure a performance, comfortable-oriented fit for every foot shape:

Precise: Raptor (size 265 last 93 mm-96 mm (RS))
Medium: Vector (size 265 last 100 mm)
Comfort: Advant Edge (size 265 last 102 mm-104 mm)

How to step in my HEAD Ski Boot and identify the right fit?

Step in

HEAD ski boots are designed with easy entry shell to help you to step in and out with less effort. HEAD recommends that you store your boot in a warm and dry area to ensure the best performance and fit.

Unbuckle the boot completely, making sure that the buckles are not caught on ratchet.

Many HEAD boots have a loop on the tongue to assist you while putting the boot on. Open the boot by gently pulling the tongue of the liner up and towards the outside of the shell while sliding your foot into the boot.

Right fit

Tap the heel of the boot on the floor, making sure your heel is correctly positioned in the back of the boot.Look for a precise initial fit that doesn't rely on you over tightening the buckles. To avoid pressure points, boot buckles should never be overly tightened.Stand on a skiing position and flex into the boot a few times. Spend some time with your feet parallel in a ski stance and walk around the room.If your fit is too loose, tighten the buckles further. If your foot is still moving backward/forward and the buckles are completely tightened, the boot is too big and you should downsize. If your toes still touch the end of the liner after the above listed steps, then you should move a bigger size boot.The HEAD innerboot will adapt to your foot over time, so look for a comfortable fit. 

HEAD recommends that you buy your boots from a HEAD authorized dealer. This will ensure you receive the best level of fitting and service.

How can i store my ski boots?

In order to avoid damage or excessive wear to the materials and to the mechanical components, we recommend you follow these simple guidelines:

- only use mild soap and water when cleaning your boots.
- avoid the use of any chemical cleaning product.
- after skiing, dry your boots away from any source of direct heat (such as radiators, fireplaces, etc.)
- before putting your boots away for a lengthy period of time, check to make sure that they are completely dry.
- the boots should be stored with the mechanical devices loosened and the buckles closed (but not excessively so)
- store your boots in dry place and – if possible – in a bag
- Your boots should not be kept in ski bindings for long periods of time.
- check that all possible mechanical devices are clean and free of ice

Can i wash my liners?

It’s important to remind that you can’t machine wash your liners. After skiing you should let them dry naturally, away from fireplaces, radiators or other sources of direct heat. Do not put them in any type of oven. To clean the liners, remove them from the shell and use a cloth moistened with water only.Make sure the liners are completely dry, before putting them back in the skiboot.

Can i change the flex of my boot?

HEAD offers a wide range of ski boots to suit different performance levels. Many HEAD boots have the ability to adjust the flex.

The flex refer to how soft or stiff the boot is based upon the plastic used.  Flex occurs in a ski boot when the skier flexes his/her ankle and knee. The flex can vary from soft(beginner level performance) to stiff(race level performance). The flex is indicated by a number included in the name of the boot.   The flex can range anywhere from 40(soft) to 130(stiff). 

Expert skiers prefer boots with a stiffer flex index, 130 or higher. The skier’s weight and height are key factors in identifying the correct flex. A skier who is short and light usually doesn’t put pressure on a  ski boot as much as a larger, heavier individual.  

We have identified four levels of flex for men:

Ski Boots Men's Flex Level

Skiing Level Beginner - Intermediate Intermediate - Advanced Advanced - Expert Expert - Race
Flex Rating - Men's 60-80 85-100 110-120 130+
Feel Soft Medium Stiff Very stiff

We have identified four levels of flex for women:

Ski Boots Women's Flex Level

Skiing Level Beginner - Intermediate Intermediate - Advanced Advanced - Expert Expert - Race

Flex Rating - Women's

50-60 65-80 85-100 110+
Feel Soft Medium Stiff Very stiff

It’s important to remember that:

A boot that is too stiff can limit a skier’s ability to progress.More powerful and heavier skiers should use a ski boot with a higher flex index.
HEAD has developed three methods to adjust the ski boot-flex.

Method 1

A) With a 4mm key unscrew the back mechanism. Pre-drill the plastic in the marks first with a 6 mm drill for a pre-mark and then drill with a 9 mm bit to complete the hole. Place the nuts in the internal side of the cuff and tighten the two rear screws.

B) Put on the boot and try the flex of the boot.

C) If you need a stiffer flex repeat the process with the second round hole and add the third screw.

Ski Boots RaptorSki Boots Raptor
Ski Boots VectorSki Boots Vector

Method 2

With a 5mm key unscrew the back mechanism,
turn it 180° and set it to hard or soft.

Method 3

With a 4mm key, turn the rivet to the left to decrease
the flex or to the right to increase it.

Ski Boots EdgeSki Boots Edge

What's the difference between the two series of Raptor boots?

The difference between the Raptor boot is the last.

The last of a ski boot, although completely invisible, refers to the internal fit and design of the boot and is the most important fit-factor. HEAD boots, shell and liner, are built around seven different lasts, each tuned to match the requirements of a certain type of skier.

Head offers 2 different high performance lasts within the Raptor line with the same external design:

RD: racing performance without compromise

RS: optimal balance of performance and comfort (reduced thickness of the walls of the shell)

RD 1500CC/93mm @ 265

The epitome of a racing last, developed together with our top athletes, geared towards the perfect anatomical wrap around the foot and optimal foot retention.

RS 1800CC/96mm @ 265

Our expert last, used both in racing and pro-freeride boots, finds the perfect balance between performance and comfort for all day charging.

What's the advantage of the Booster Strap VS a normal strap?

The strap of the Double Power Booster Velcro works as a double pulley for better closure and a tighter wrapping on the cuff. The elastic Booster Strap allows for a more dynamical response to the boot. The result: more precise transmission of energy and a faster ski reaction.