USM 3315 Mesh Double Sleeve T Shirt Core Product easy insertion and maximum all day VGST1422T easy insertion and maximum all day comfort Size and shape fits most ear canals Smooth closed cell outer layer that prevents debris build up Soft and comfortable PowerSoft™ foam supports long term comfort Metal detectable (blue) recommended for use in the food industry NRR 33 protection Stay comfortable and protected with the RJ40 safety jacket A great option for protecting both arms against cuts and punctures in a single piece of PPE The USM 3315 T shirt extends 12" across the breast bone in front and the shoulder blades in back