El Naturalista N722 Nido Short Boot uses El Naturalista eco-friendly materials to make you feel good inside and out. The N722 Nido Short Boot uses vegetable-tanned leather that is churned with ground tree bark and river stones for weeks to make the hide resilient to dirt, water, wear and tear. El Naturalista N722 Nido Short Boot uppers feature understated contrast stitching and a side zip for an easy on/off fit. The El Naturalista outsole affords astonishing flexibility, whilst the overall N722 Nido Short Boot design uses the principles of reflexology to encourage a pleasant and healthy wearing experience.