Ultra High Molecular Weight (UHMW) plastic body armor is designed to keep riders safe on the trail in all seasons UHMW is a high-end plastic product that is custom milled for use in the TekVest«, and provides cut resistance and flexibility UHMW is laminated to a closed-cell, vinyl nitrile foam to deliver comfort and protection 360? armor coverage around the ribs Breathable inner and outer mesh Narrowed shoulders for maximum maneuverability Integrated hydra-pack hose mount YKK zipper for maximum durability Center "cooler" clip for custom fit and flexible ventilation Universal MOLLE - Modular Lightweight Load - carrying Equipment Adjustable side straps for custom fit Tek-Pack mounting system Reflective piping. TEKVEST SPOKEMASTER LT XL