The K Swiss Tubes Run 100 trainer is a running and fitness training mens activity shoe from K Swiss. Tubes Run 100 adapts to individual running styles with superb cushioning, stability and durability. K-Swiss Tubes Run 100 is the dream ticket to take your fitness training up another level. Men's K Swiss Tubes Run 100 stability arises from small anatomically placed cylinders on the medial side. K Swiss build superb mid-foot support construction into lightweight Tubes Run 100. Open air mesh uppers and an EVA removable moulded sockliner make the K Swiss Tubes Run 100 road running performance enjoyable.