4" and 6" reflective collars for MUTCD compliant nighttime performance

3M™ Flex 40 Thinsulate™ stretches 40% in each direction and recovers without compromise to its superior insulation properties

Wide stretch waistband prevents gapping in the back and offers a comfortable fit

durable hook & loop closure

Bulwark Nomex FR Knit Balaclava CAT 2 - HNB4NA Size:M 4" and 6" reflective collarsBulwark Nomex FR Knit Balaclava CAT 2 HNB4NA Features Double layer head single layer extra long neck skirt Soft and comfortable with finished edges throughout Double Layer: Arc Rating ATPV 15 calories cm Single Layer: Arc Rating ATPV 6. 5 calories cm Fabric : Body: 8. 4 oz. (285 g m) Flame Resistant Blend : Body: 100% Nomex Aramid Wash Care : Home Wash Description : Nomex FR CAT 2 FR AR balaclava offers protection and comfort in one with soft,