ecoTWX material upper; Made without glue, thereby eliminating harsh chemical adhesives; Air-mesh lining for improved breathability and comfort; Migration from nylon and/or cotton laces to 100% bamboo laces; Elastic gore tongue panels provide option to wear shoe as a slip-on or lace up; Independent interlocking stitching system; Compression-molded EVA midsole for sustained comfort; Molded, low-to-the-ground comfort outsole infused with rice husk from repurposed agricultural byproduct provides durability