It took APL Athletic Propulsion Labs over two years to design these 'Breeze' sneakers, they're the brand's lightest running shoes yet. , This pair is constructed with breathable TechLoom uppers that flex with the foot and boost airflow, Speed lacing systems for a secure fit, Propelium® midsoles offer cushioning and energy return on every stride, Crash pads on the forefoot of the rubber soles absorb shock Wear it with: Tracksmith Top, Tracksmith Shorts.