The newly upgraded REACTOR-2 is engineered for performance in a value driven package. A perfect combination of stretch and durability. Fresh colours and graphics with style that's built to last. Back Zip - Easy Entry; Wind-Proof Smoothskin; Strategic Seam Placement; Adjustable Single Seal Collar; Hidden Key Pocket; Krypto Knee Padz; Flatlock Stitched Breathable Seams; UltraFlex Composite; Top Sleeve/Under Sleeve: FluidFlex; Chest/Back: Mesh Smoothskin Fluid Foam.