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Heel lifts in the boot

Why does my heel lift in my ski boot?

Your heel rises when the boot lets your foot move up as you flex forward. That play costs you control: your input arrives late and partly lost. A snugger heel pocket, a better footbed or a stretchy power strap are the first things to try.

What it looks like in the model

heel · · · ball of footforce lineshin 14°

glutes working

Your stance8.0 mm of boot play

Muscle load

  • Quadsfront of thigh, hold the knee bend34%
  • Glutes & hamstringsback of hip and thigh39%
  • Shin muscleslift the toes when you're back0%
  • Calvespush the shin into the tongue23%

Low, can hold all dayMidHighPeakTick: average through the turn

Tail at the finish

7%

The fix: 4%

Tip at the finish

10%

The fix: 14%

Showing: Your stance. 8.0 mm of boot play.

Shown for the default skier: 92 kg on the K2 Mindbender 89 Ti at the finish of the turn, 3 mm of boot play, groomed snow.

What is happening

When you flex forward, your heel should stay down. If you can feel it rise, the boot is not holding your heel in place. Your ankle then moves inside the shell before the shell moves with it. Play is the word fitters use for that gap.

The model treats play as a delay and a loss. With 8 mm of heel play, the ski gets a smaller and later version of what your body did. That matters most when you need quick small movements: starting a turn, absorbing a bump, reacting when the ski hooks up.

Which heel lift

This is a wording trap. Heel lift also means the wedge a fitter puts under your heel. This page is about the symptom: your own heel coming up in the boot.

Why it happens

  • The heel pocket is too big for your heel. A boot can be the right length and still be loose at the back.
  • The liner has packed out. Most liners lose volume in the first week or two of skiing, and a snug new boot can become a loose one.
  • Your instep is not held down. Heel hold comes largely from the fit over the top of your foot and ankle, not from squeezing your heel.
  • Your ankle does not flex far enough. If you can not bend as far as the boot wants, the heel lifts as you push.

How to tell which one

Stand in the boot with the buckles done up as you normally do. Flex forward and watch your heel. Then flex again with a second pair of hands holding your heel down. If the lift disappears when the heel is held down, the issue is hold. If it stays, the issue is range at the ankle.

What the model shows

The figure above shows the same skier with no play and with 8 mm of play. The difference in the stance is small, but it is there on every turn, and the bars show where it lands.

What to try

Start with the fit, not the buckles. Over-tightening buckles on a loose boot rarely fixes the lift. Your fitter can add a heel hold, a volume reducer, a footbed, or a stretchy power strap. These are cheap and reversible. Take the boots in after eight or ten days of skiing, once the liners have settled, and explain what you feel.

Other likely causes

The model’s first match for this symptom is your boots are letting you move (100% of the evidence). Here is what else it ranks, and how to tell each one apart.

You're sitting backworth ruling out

How to tell: You feel it in your quads and in your stance rather than at the back of the boot. Heel lift itself will show on video as a gap between heel and footbed.

What to try, in this order

  1. Cue. Boot fitter: heel hold, volume reducer, footbed, a stretchy power strap.
  2. Drill. Film one run from the side and compare it with the figure above. A phone propped in the snow is enough. Watch: HOW STIFF SHOULD YOUR SKI BOOTS BE?
  3. Boot check. Flex forward in the shop with your heel watched. Ask for a heel hold, a volume reducer, a footbed and a stretchy power strap, in that order, and test after each.
  4. Gear. Check the liner after eight or ten days. If it has packed out, a new liner or a thicker footbed brings the volume back.

When it’s not technique

Heel lift is almost always a fit question. Go back to the fitter who sold you the boots with a note of what you feel, and use the summary on the Feel page to say it in fitter language.

Compare skis

Ski patrol says

A loose heel can bruise your toes or rub your heel. Rubbing is a fit issue. Pain in your toes, ankle or shin that does not settle is something else. See a physio.

Pain or injury? This tool is for how skiing feels, not medical advice. See a physio.

Not medical advice. Edge Lab describes how skiing feels and why.

Check your own setup

The model above uses a default skier. Add your weight, skis and boots and see your own numbers.

Check your own setup