The Reconverted S1P SRC is a safety trainer with an ecological fabric upper, a non-metallic midsole and an aluminium toe cap. TEXPET, 100% PET ecological fabric upper SANY-DRY 100% polyester fabric internal lining ECO-TECH, POLY-GREEN footbed Polyurethane/TPU sole with POLY-GREEN insert Aluminium toe cap 200 J Non metallic APT PLATE midsole - Zero Perforation even with a 3 mm diameter nail Abrasion resistant leather toe cap protection Laces and tongue labels are made of 100% recycled yarns deriving from plastic bottles