Seirus Cat Tracks - 4150 Helps prevent boot & binding malfunctions caused by wear & gravel contamination of boot soles Add life to your boots Keep your boot soles like new and prevent unsafe wear Protect ski boot & binding compatibility Slip on sole improves traction and provides amazing walking comfort Fits neatly into pocket or under snow cuff on ski pants Used by pro racers and recommended by major boot & binding manufacturers such as: Nordica, Salomon, Rossignol, Marker, Technica, Lange SIZE REFERENCE (boot size) * Lg - fits 8 (26.5) and up * Sm - Fits 8 (26) and under * Jr - Fits 4-7 (22-35) Seirus Cat Tracks | Black | Large | Christy Sports