Best Platform Heels: The Summer Sandal A less formal option, the Simmi London Kellie platform mule sandals in white croc (£35) can work for both day and night when paired with the right look. As a slip-on sandal, they aren't as sturdy due to the lack of the ankle strap to secure the foot, but they are much lower to the ground. With jeans or denim shorts, they could work well for a casual daytime outfit, or paired with a dress for evening glam. Image Source: asos.com Simmi London Kellie platform mule sandals in white croc £35 from asos.com Buy Now