Thermotropic membranes adjust porosity based on internal temperature fluctuations.

This classic hiker-style work boot is tough on the outside and comfortable on the inside and gets you through a hard day's work in Carhartt comfort and performance.

The Carhartt Ironwood 6" Alloy Toe Waterproof Work Boot features a tough oiled leather upper and padded ankle for comfort and is designed to move and flex with you every step of the way. This medium-duty work boot sports a lightweight alloy safety toe and an EH-rated high traction slip-resistant lug outsole with a 90-degree heel for extra grip, stability, and safety.

Comfortable for wearing and standing long term, the Carhartt Ironwood cushions and supports the feet with a polyurethane insole with maximum arch support and polyurethane midsole with rebound comfort to reduce foot fatigue and maintain all-day comfort. And the high-performance moisture-wicking linings and breathable Storm Defender waterproof protection keep you dry and comfortable in wet work environments.

Compression fit tongues prevent slippage during directional changes