The Jeffrey Campbell Sweet-On-U Platform Heels feature a statement silhouette with a lofty block heel, sheer mesh detail, and delicate straps. The elevated platform construction offers added stability for easy wear. The Jeffrey Campbell Sweet-On-U Platform Heels feature a statement silhouette with a lofty block heel, sheer mesh detail, and delicate straps. The elevated platform construction offers added stability for easy wear. Since 2000, Campbell and his wife Christina have created footwear that’s at once accessible, comfortable, and fashion-forward, delighting their fans with a constant stream of new styles that reflect an uncanny ability to anticipate upcoming fashion trends.