Dr. Scholl's Professional Series Work insoles use proprietary 3D-formed ballistic fabric material to provide puncture resistance from scrap metal, screws, nails and other hazards — without needing to invest in specialized footwear. The proprietary 3D-shaping of the ballistic fabric provides expanded coverage of the arch and heel area from punctures. • Multi-layer protection from sharp objects (glass/metal/nails). • Reduces pain and fatigue. • Lightweight and flexible puncture resistant technology. • All-day comfort and protection. Dr. Scholl's Professional Series Work insoles use proprietary 3D-formed ballistic fabric material to provide puncture resistance from scrap metal, screws, nails and other hazards — without needing to invest in specialized footwear. The proprietary 3D-shaping of the ballistic fabric provides expanded coverage of the arch and heel area from punctures. Footwear Type: Insole; Size Group: Men's Sizes 8 to 14; Material(s): Ballistic Polyester Fabric/Thermoplastic Elastomer Foam; Color(s): Black.