Solid Gear SG77003 Tempest Lightweight Nano Tap Cap Safety Trainer SOLID GEAR Tempest is the safety shoe that creates 360° breathability with the unique Hive Technology, a new technology with airflow through the sole. Moisture is transported away from the foot through the air channels in the midsole and fresh air passes through the channels back to the foot for maximum breathability. Tempest also has a state-of-the-art BOA® Fit System with the dial placed on the side of the shoe, ensuring a precise fit even when working on your knees. Dual density layer of EVA in combination with a TPU heel shank for superb cushioning and stability when walking. Upper: Textile with TPU reinforcements Outsole: Rubber Midsole 1: EVA Midsole 2: EVA Footbed: Moisture wicking PU foam Heel shank: TPU Function: BOA® Fit System Fit: Wide Sizes: 36-48 Safety standard: EN ISO 20345:2011 S1P, SRC Protection: NANO toe cap and soft non-metallic nail penetration 360° breathability BOA® Fit System Metal free Double EVA midsole and rubber outsole Lightweight