The comfort of a sport sandal upper, the lightweight, barely-there feel of a packable travel sandal. This combo lets the Z-Trek do it all. The Z-Trek is an upgrade to the popular original, now with smooth, tubular nylon straps made from rPET recycled materials. The fully adjustable strap system lets you fine tune your fit, giving you the security you love in Xero Shoes. The 6.0 mm FeelTrue® sole gives fantastic ground feel while still protecting you from the elements, while the dual direct It’s easy to find the right Xero Sandal size for you. The Z-Trek fits large and we recommend a snug fit, so… Buy the Z-Trek in your usual US size, or go one size smaller In excellent used condition. Please refer to pictures for more detailed information. I am happy to answer questions and post more photos. I am open to reasonable offers and bundles. I have more outdoor/activewear in my closet!