Details from BIRDIES website: We don’t usually drop words like “classic silhouette” in casual conversation, but in the case of our versatile Starling, it’s a perfect fit. Sleek, soft and very very velvety, she’s your go-to flat for moving around in the real world, whether you’re running the show or letting drinks turn into dinner. It’s no wonder Starling is our number one. Smoking slipper with 10 mm heel Rated five-star fabulous by 15,000+ women Crafted of luxurious vegan velvet No-slip rubber sole for indoor + outdoor wear 7 layers of cloud-like comfort in every footbed Due to the nature of velvet, color variances may appear in this textured fabric depending on the angle captured and source of light