There is nothing to keep it from racking right or left. Easy stretch but still firm. You simply slip the sandals on and go! The bass is definitely not overkill though, it just adds a bit of oomph to my music. Im so Happy. They sound great, quality is great, love that they include a plastic carry case to secure the extras in so they dont get wrecked in my bag. This product reorganized my kitchen by clearing a cabinet and easily revealing all my herbs and spices for easy use. Have been wearing these all summer and still love putting them on every time. These shoes are very well cushioned and comfortable and I thought I finally found the ones. It handles water like an Olympic swimmer and it can get loud.