EN ISO 20471:2013 Class 1 2-way stretch fabric No shoulder seams YKK® front zipper Expandable front for improved movement Possibility to use over winter jackets Opening at back for harness Multiple pockets ID card loop Plastic covered metal buttons Cordura® hanging pockets with double lined bottom and nylon webbing for durability Broad center back belt loop for extra stability and strength Removable belt 77120 Alna 2.0 High Visibility Construction Vest