Haltham Knee High Boots DuoBoots Wide Calf Boots & Narrow Calf Boots Knee High Boots DuoBoots US Understanding Boot Materials: Leather, Suede, and Synthetics DuoBoots Wide Calf Boots & Narrow Calf Boots 8 Calf Widths DuoBoots Canada Understanding Boot Materials: Leather, Suede, and Synthetics DuoBoots Haltham Knee High Boots DuoBoots. Haltham brings a refined edge to the everyday ankle boot. Crafted from smooth black leather, this minimalist silhouette features a 3. 5cm monoblock heel and a softly structured almond toe. The memory foam insole and elasticated panel add comfort to every step, while the durable rubber sole makes it a practical choice for everyday wear. Sleek and streamlined, Haltham is the kind of effortless essential youll reach for on repeat.