How to Replace Ski Boot Liner Laces and Wires
By La Sportiva North America | Published: 2026-10-29
Category: How-to Guides
Learn when and how to replace your ski boot liner laces and shell closing wires. Step-by-step instructions for a secure, comfortable fit.
Quick Answer
Replace your ski boot liner laces when they fray or lose tension, and swap out the shell closing wire if the buckle no longer holds securely. Use genuine replacement parts to maintain fit and performance.
When to Replace Liner Laces
Liner laces take a beating from constant tightening and releasing. Over time they stretch, fray, or even snap. If you find yourself retying mid-run or the lace no longer holds a snug fit, it’s time for a replacement.
A worn lace can also affect how the liner wraps your foot, leading to pressure points or heel lift. Replacing it restores the liner’s ability to lock your foot in place.
Why the Shell Closing Wire Matters
The shell closing wire is the metal cable that connects the buckle to the boot shell, usually over the instep. If it breaks or stretches, the buckle won’t close securely, which can compromise your control and comfort.
For La Sportiva Vanguard boots, the external/lateral wire weaves over the toe box. Using the correct replacement wire ensures the buckle aligns properly and holds with the right tension.
Step-by-Step Replacement Guide
- Assess the Damage: Check the lace for fraying, stretching, or breakage. For the wire, inspect the buckle and the wire’s attachment points for rust, kinks, or looseness. If the lace or wire is intact but just loose, try tightening the buckle adjustment before replacing.
- Remove the Old Lace or Wire: For laces, unthread them completely from the liner's eyelets. For the wire, use a small screwdriver to detach the buckle from the shell, then carefully pull the wire free from its channel. Take a photo of the original threading or routing before removal to make reinstallation easier.
- Install the New Lace or Wire: Thread the new lace through the eyelets in the same pattern, ensuring it is not twisted. For the wire, route it through the shell channel and reattach the buckle, making sure it sits flush. Double-check that the wire is not pinched or kinked—this can cause premature failure.
- Test the Fit: Put on the boot and tighten the lace or buckle. Walk around and flex the boot to ensure the closure holds securely and there are no pressure points. If the buckle feels loose even after tightening, the wire may need adjustment or the buckle itself may be worn.
Replacement Parts That Fit
- Shell Closing Wire Vanguard (Ext. Side): This is a replacement closure wire that holds the buckle over the instep of the Vanguard Ski Boot. It is the external/lateral wire that weaves over the top of the boot shell's toe box. Using the correct wire ensures your buckle stays aligned and secure, so your boot performs as designed.
Shell Closing Wire Vanguard (Ext. Side) - Stellar II Liner: The Stellar II Boot Liner works with La Sportiva Stellar II ski boots to provide additional comfort and warmth. This is a replacement pair of liners. If your liner is packed out or damaged, replacing it restores the snug, warm fit you need for all-day comfort.
Stellar II Liner
