Heavenly Feet, vegan friendly, ankle boot, Esther. Timeless sophistication meets everyday practicality in the Esther ankle boot from Heavenly Feet. Featuring a sleek vegan-friendly design with faux side zip and full functioning inside zip, this boot is the ideal addition to your autumn/winter wardrobe. The rich upper pairs beautifully with both casual and dressy looks, while the cushioned memory-foam insole, textile lining and super lightweight outsole ensures comfort throughout your day.. Upper: Synthetic. Lining: Textile. Sock: Textile. Sole: Other Materials. Sole height: 50 mm / 5 cm / 2 inches. Boot height: 110 mm / 11 cm / 4.25 inches. All measurements approximate.