ST21B ST21B Type R Class 3 Long Sleeve Black Bottom T-Shirt Face Shields Heavy duty with a heavy

Heavy duty with a heavy metal hook for mounting|Snap closure

Converts to vest with removable

Accessory loops on exterior of collar in back and 2 each on either side in front

They call it MaxiDry®

4V battery and a strap with an accessory hook

ST21B ST21B Type R Class 3 Long Sleeve Black Bottom T-Shirt Face Shields Heavy duty with a heavyRadians ST21B Type R Class 3 High Visibility T Shirt with Max Dri Moisture Wicking Mesh is made with an arid Birdseye Mesh allowing for maximum breathability, without compromising durability. The stripes are adhered by heat transfer rather than sewn on, making the safety T shirt wear much more like a regular T shirt. The wicking properties improve hot weather comfort making it feel much cooler. The front pocket does not include reflective material to