EUC Calvin Klein Slingback Kitten Heel Pump Patent Croc Nude. Size 8. The kitten heel is stylish and elegant that combines a classic design with a touch of modern flair. The kitten heel is only 2 inches high, making it perfect for dressing up or down, and the cushioned insole ensures all-day comfort. The sleek and streamlined design makes it easy to wear with dresses, skirts, or even jeans, making it a versatile and practical addition to any woman's shoe collection.