DESCRIPTION The newly upgraded REACTOR-2 is engineered for performance in a value driven package. A perfect combination of stretch and durability. Fresh colors and graphics with style that's built to last. Back Zip - Easy Entry Single Super Seal Neck Strategic Seam Placement Wind-Proof Smoothskin UltraFlex Combination Flatloc-Stitched Breathable Seams Top Sleeve/Under Sleeve: FluidFlex Chest/Back: Mesh Smoothskin Fluid Foam Krypto Knee Padz, Ergonomic Knee Protection Smoothskin Fluid Foam Neck 30% FluidFlex / 70% Fluid Foam Hidden Key Pocket