Propa Tongue Shim
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The Propa Tongue Shim is a simple, high-impact fix for improving shin contact and upper boot fit—especially when your boots feel loose through the cuff or inconsistent under pressure.
Designed to stick directly onto the tongue of your liner, it fills excess space between your shin and the boot, creating more even pressure distribution and a more connected feel. The result is better control, smoother flex, and reduced need to overtighten buckles.
It’s particularly effective for skiers dealing with shin bang, poor contact, or low calf volume, and can be trimmed to fine-tune the fit exactly where you need it.
Key Features
• Improves shin contact for more consistent pressure through the boot
• Reduces shin bang and pressure points by distributing force more evenly
• Fills excess cuff volume for a tighter, more responsive fit
• Adhesive backing for secure, permanent placement on the liner
• Customisable shape – easy to trim and adjust for precise fit
• Simple install – peel, stick, and ski
• Works with most alpine ski boots as a quick fit upgrade
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