A lightweight and flexible fit that bends to meet the hefty demands of
your day. The Carbo-Tec FLX is our newest boot featuring the durable,
long-lasting, and slip-resistant Carbo-Tec Rubber outsole with a
Shovel Shank XL that offers triple the support of a traditional
fiberglass shank. Built with FLX-FIT technology, you can slip into the
comfort of our AMP (Advanced Memory Polyurethane) insole that will
keep your foot supported throughout the day.