The Rocky 9'' SilentHunter Waterproof Insulated Outdoor Boot has the features Climate IQ (Hydro, Equip, Scent) properties and 400g PrimaLoft insulation to offer comfort and durability. A Vibram minimalist outsole helps keep your footsteps quiet so you aren't alerting the wildlife on the hunt. Vibram also is a durable, long-lasting material.A ripstop upper and high-abrasion TPU toe and heel. Inside, the foam footbed and soft EVA midsole give your feet comfort while still allowing you to feel the terrain.