Puma Safety Amsterdam (642717)Features From the Puma Safety Metro range, the 642717 Amsterdam incorporates a water repellent nubuck leather upper, TPU sole with torsion control element for greater support, stability and flexibility, combined with a drawn up scuff cap in the toe area to reduce leather abrasion when working on knees. This model has a lightweight aluminium toe cap, with a full layer of Poron under the insole for enhanced comfort. Protection: Lightweight Aluminium Toe