The upgraded REACTOR-2 is meticulously engineered for top-tier performance, striking the perfect balance between stretch and durability. With its fresh colors and graphics, it boasts a style designed to endure the demands of active lifestyles, ensuring lasting quality and reliability. Features: 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