A removable bootie made with memory foam and insulation is durable enough to be worn on its own. Inspired by Bill Bowerman's service in World War II, the Nike SFB Mountain Military Brown/Military Brown Men's Boot features a tough exterior and aggressive outsole that can take on any surface in any conditions.BUILT FOR RUGGED TERRAINBenefits Kevlar® reinforced canvas upper is durable, water-repellent and breathable Perforated bootie can be removed and worn on its own, allowing for quick drying Foam provides excellent cushioning that is firm enough to support a combat load Plate on the bottom of the sockliner provides stability and natural motion Aggressive outsole pattern ensures traction on rough terrainProduct Details Kevlar® reinforced footbed helps protect the foot from punctures Removable midsole doubles as a sockliner External collar helps prevent small stones from getting in Memory foam in the bootie prevents slippage and keeps the foot warm...The Nike Shoes more colors