Vivaia Margot Square-Toe Mary-Jane Black 43 / 11. The beloved Margot Mary-Jane has been updated with an adjustable instep strap for a comfy, customizable fit. Its classic design pairs perfectly with casual or formal wear, making it a versatile option for any occasion. Dress it up for a night out or wear it to the office - the Mary-Jane's fashion and function blend seamlessly. This style is classic, yet bold! Pair with mom jeans and an oversized white shirt, or a pair of trousers and a blouse. This style is perfect for a work day or a walk in the park. Flat 1cm/0.34'' heel. AdaptAll Strap. Square-toe. Knit upper made from plastic bottles. Made with durable upcycled materials. Natural Artemisia Argyi herbal insole. Rubber outsole. Great pre-owned condition. No stains/flaws. Smoke/pet free home. Offers welcome. Bundle & save. Ship same/next day. Packaged w/ care.