For the first time the SFB line presented in 2009, it included shoes designed for soldiers of elite units: lightweight, protected from moisture, perfectly UX – all of these immediately became cool features of the series. SFB dedicated to Nike co-founder Bill Bowerman, who served in the 10th mountain division of the United States.
One of the most engaging versions of the SFB was the Gen 2 GTX, released in 2014.
It is noticeable that construction consists of very durable synthetic leather, ballistic nylon canvas and lightweight ankle support system, which in addition has high breathability. Of course, the main feature of this model stands for the Gore-Tex membrane fabrics: together with the breathable upper it becomes possible to use Gen 2 GTX in the most literally severe weather conditions.