Very hard to tell from these pictures but it looks like it might be a neoprene face mask in camo colors?
https://www.amazon.com/Zanheadgear-WNFM118-Woodland-Camouflage-Neoprene/dp/B0012TUSLE/ref=mp_s_a_1_5?keywords=neoprene+full+face+mask&qid=1680728437&sr=8-5