These durable, made-in-the-USA, fully Berry-compliant socks are USAF-certified Safe to Fly. They provide all the warmth, comfort, and features needed in a high-performance environment, with the added safety and assurance that your feet will be protected by Fox River's flame-resistant and certified "no drip no melt" technology. As with all Fox River socks, the Safe To Fly Heavyweight Mid-Calf Boot Sock is proudly made in the USA.

Features

• Vented panels remove moisture and keep you dry
• Boot Height
• Fully cushioned sole absorbs shocks and insulates
• Cushioned shin for extra padding against boot lacing
• Reinforced toe and heel add durability and longer sock life
• Smooth, flat comfort toe seam
• Made In The USA