These were only worn indoors and are in excellent used condition. I didn’t have them for very long when I developed arthritis in my feet. I can’t wear flexible shoes like these anymore so they’ve just been sitting in my closet. From the Teva website: •Our Olowahu’s elegant strapping system meets a comfy slip-on wedge. •Quick-dry webbing made from recycled plastic using traceable, verifiable REPREVE® polyester yarn by Unifi® supports your foot and stands up to abuse •Mush® topsole cushions and forms to your foot for amazing comfort •A lightweight EVA-foam outsole keeps you light on your feet •Treated with Life Natural, a peppermint-based anti odor treatment •Sustainability Initiative(s): Vegan, Webbing made from recycled plastic using traceable, verifiable REPREVE® polyester yarn by Unifi®