COOLER MASTER's air-cooled wear PRO is perfect for combating the intense heat, featuring a lightweight design compatible with full harnesses. - Brand: COOLER MASTER - Model Name: PRO - Type: Air-cooled wear - Function: Heatstroke prevention - Features: Compatible with full harnesses - Material: Lightweight battery case - Design: Equipped with a rear fan Thank you for viewing. I tried it on once for a fitting. Although it is new and unused, please understand that it is personally owned.