The 5.11 Taclite 6″ Coyote Boots was designed for Exceptional breathability and lightweight performance for hot, arid, and tropical climates. Non-metallic shanks, therefore, making it nice to not have to “unshoe” yourself to pass through metal detectors. This boot has those NM-shanks, as well as what I will call stealth soles. More importantly, you can move silently in these boots over virtually any solid terrain. No squeak, or anything that suggests that someone is coming your way.