An injected ski liner, moulded to the shape of your foot - SIDAS
Surefoot London - “Are those ski boot liners?! they look funny…” - The answer to that is YES!! - Don't worry though, those tubes aren't there when you're skiing. Our CUSTOM ski
Why custom ski boot liners are a good idea - ski boot fitting, Profeet London
Memory Foam–Injected Liner Takes Surefoot Custom Ski Boots to a Whole New Level – Robb Report