Nike Zonal Cooling technology Breathable engineered mesh Comfortable shaped bottom hem Smooth flatlock seams Non-restrictive scoop-neck design Reflective elements for enhanced visibility on low-light runs Keep up the pace with Nike's Zonal Cooling Running Top. Engineered for your comfort, this performance-enhancing running top features body-mapped mesh and is made of sweat-wicking fabric that leaves you dry, comfortable and focused on the road ahead.