Calvin Klein's Block Heel Boot sets a square toe above a low 55 mm block heel, with a leather upper and a textile lining inside. Without a buckle or strap, the slip-on shape keeps the line of the foot clean, and metal trim details the side. The leather upper settles after a short break-in period. **Product Highlights** • 55 mm block heel spreads weight across a broad base for steadier footing than a stiletto • Leather upper with solid stitching that holds its shape through repeated wear • Square toe leaves room across the forefoot • Textile lining softens contact against the foot **Best For** • Office days that run from desk to meetings and back again on foot • Commutes across pavements and stairways where footing needs to stay sure • Garden weddings and outdoor events held on cobbles or gravel • Evening dinners when a low lift suits better than a high heel • True-to-size buyers who prefer their usual size rather than sizing up