Ponos

The Ponos is a pair of boots manufactured by R6 Pro.

In-game description
"Quite simply, R6 Pro's Ponos boots were built for backbreaking work. Constructed out of Thermosulate technology, these waterproof and insulated workboots are rated for sub-arctic environments while the Composite outsole ignores hazards to maintain traction when you need it most."

Development
The female version of Ponos was implemented in Alpha 3.13.