Womens Vivaia Square-Toe V-Cut Flats Margot 2.0 Size 40 US 9 Cream Ivory & Black I ship fast, and I'm always happy to answer your questions! Square toe Flat 1cm/0.34" heel Knit upper made from plastic bottles Natural Artemisia Argyi herbal insole Rubber outsole The insole contains natural Artemisia Argyi herbal. People with allergies, please consult a medical professional before wearing. Arch support Roomy toe box Heel padding Anti-slip rubber outsole Shock-absorbing yoga mat midsole Machine washable, air dry Packable