Elka Mens Working Xtreme Stretch JacketElka Mens Working Xtreme Stretch Jacket The Elka Working Xtreme Stretch Jacket for men is designed with taped seams and a YKK main zipper. It also includes a chest pocket with a hidden ID pocket, a vertical chest pocket with a coated zipper, and a hidden multi function pocket for tablets or notebooks (A4 size). The jacket features a double storm flap with hook and loop closures, as well as two pockets with zippers and flaps. For added functionality,