Occunomix Classic Phase Change Cooling Vest & Packs HRC 1 PC-CPK, Occunomix Classic Phase Change Cooling Vest & Packs HRC 1 PC-CPK, Embroidered Arc Rating, Cools for 2-3 hours, set at 65 degrees, Spare cooling packs (PCP1) (Made in USA), 1 3/8” Yellow gloss reflective tape: Horizontal stripe front and back, Adjustable with hook & loop strap, 3M™ Thinsulate™ Insulation, Retail ready packaging, Vest Length 17 ½” Classic Phase Change Cooling Vest & Packs HRC 1 ONLY