Engineered mesh uppers will encase each foot in breathable comfort. Lightweight and highly breathable for all-temperature comfort, the mesh acts as a lightweight second skin, providing a supportive and comfortable fit. Its perforated construction allows air to fully permeate the entire upper, letting your feet breathe when the temperature starts to rise or your training session heats up. In addition, overlays are added to the construction to provide smooth support without adding weight and bulk. The upper is tightened and loosened in certain areas to allow for the foot’s natural motion, working with you as you train for everything from morning runs to challenging marathons. The asymmetrical lacing system unites with an exoskeletal heel counter to guarantee perfect comfort and fit, especially in the ankle and heel area; they help to anchor you to the midsole and reduce in-shoe slippage so that you can enjoy smooth distraction-free strides. Completing the upper are reflective accents that increase your visibility to passing vehicles on late night adventures.