New in box Enjoy support and fun in warm weather wearing the Vionic Alta Thong Sandal. This classic flip-flip is designed to offer arch support, ample cushioning, and stability. Clinically shown to provide temporary heel pain relief comparable to an orthotic insert.* *Based on a peer-reviewed clinical study partially funded by Vionic on patients experiencing moderate, non-traumatic heel pain. Vionic brand's biomechanical technology is shown to be an effective treatment for heel pain. Vionic brand's biomechanical footbed supports you from the ground up. By building biomechanical technology into premium footwear, Vionic brings together the best of science and style. For the greatest comfort, we recommend wearing your new Vionic footwear for just a few hours for the first few days to allow your feet to adjust to the new level of orthotic comfort and support. Within one to two weeks you should find the product completely comfortable and supportive. Vio-Motion™ Support includes Three-Zone Comfort with Ultimate Arch Support for a difference you can feel Innovative approach to foot health, Vionic conceals biomechanical technology into each shoe Full contact support hugs your curves Heel seat stabilizes and positions foot Deep heel cup provides essential stability Ball-of-foot cushioning for comfort Contoured footbed for addictive support EVA insole Durable rubber outsole