The Scarpa Maestro climbing shoe is a revolutionary shoe that offers stability for standing on small edges and yet has enough flex for smearing. The secret of this shoe lies in its refined layers of technology. A full-length Janus 1.1mm plastic insert and IPC-Tension active randing system gives integral support to the foot while under pressure on small holds and maintains flex for smearing while Combination lace system spreads pressure evenly across the forefoot.