Nike’s militarized version of Bruce Kilgore’s iconic Air Force 1 has been a hit in sneaker culture, as the multiple military-inspired sneaker sold out instantly when it dropped. The highly sought after SF-AF1 features ballistic nylon, weather resistant uppers, paracord straps and a duffle bag in the same colorway and now Nike has just given the SF-AF1 a lifestyle touch by introducing the latest “String” colorway that features a lifestyle beige suede and a gum outsole.