Portwest UMV21 Arc Rated FR Hi Vis Mesh Vest with Hook & Loop Closure Size:M Its sides and sleeves are

Its sides and sleeves are made of a poly/spandex combination

and sleeve lining

Optional 3 phase removable Mobile Cooling ice packs↗

Four ventilation holes allow for good airflow and keep the wearer cool

100% polyester mesh back

Portwest UMV21 Arc Rated FR Hi Vis Mesh Vest with Hook & Loop Closure Size:M Its sides and sleeves areThe Portwest UMV21 Arc rated FR mesh vest is best used for fire protection purposes. With its fire resistant lining and flame resistant qualities, the vest can thrive near flammable areas. However, the vest should only be worn over ARC rated clothing for safety. Additionally, the vest has a hook and loop closure, so it's easy to wear and remove them. The vest also has one internal pocket, so you can use it to store anything you'd like. Hi vis vest