Plan C Knee-high Zip Boots in smooth calf leather, featuring a structured platform sole for added height and a side zip for easy wear. Model number STCSF51G05LV06900N99 — retailers list the model name as "Knee-high Zip Boots"; designer ID: PLAN C. Key attributes: Black | Calf leather | Side zip closure | Knee-high shaft | Smooth leather upper | Structured platform sole | Dimensions & fit: Knee-high height | Composition & care: 95% calf leather | 5% metal | Wipe with a soft cloth; avoid soaking. Use a specialist leather cleaner/conditioner as needed. Store in a cool, dry place away from direct sunlight.