4T029HV - One-Hole Facemask W/3M Thinsulate Insulation.
Hi-Visibility classic knit facemask with 3M™ Thinsulate™ Insulation, made of 100% acrylic.
Available in the following colors:
Safety Yellow, Fluorescent Green, Assorted (Yellow and Green)

To learn more about 3M™ Thinsulate™ Insulation technology click below:
