The Brooks Men's Equilibrium Shortsleeve Performance Top paired up Brooks amazing, silky soft Equilibrium fabric with super-soft mesh and retro-reflective accents for improved visibility to keep you safe morning and night. The Brooks Men's Equilibrium Shortsleeve Performance Top is a technical tee designed for the run, but likely to become your preferred day-to-day base layer. The Brooks Equilibrium Shortsleeve Performance Top features is a fitted t with a close to body fit with flatlock seams that will be comfortable mile 3 and on till mile 26.