It's never a bad idea to stack the deck in your favor, and the MIL-SPEC 2 Vest stacks it with two different hi-visibility options Form-fitting and breathable, the 4-way stretch Poly chassis allows the vest to be worn over your riding jacket, working with its existing vents The snug performance fit eliminates wind flap, unlike the plastic safety vests of yesteryear Engineered with the goal of "visual conspicuity", its Hi-Viz body is paired with retro reflective side and back paneling to aid in being detected in low-light conditions Sublimated graphics and reflective heat transfers give these vests an updated look with safety in mind See and be seen in the MIL-SPEC 2