Notch Armorflex II Chainsaw Protective Pants are lightweight and constructed using 5-layer Avertic Engtex high performance protective fabric. Lightweight at 2.2 lbs. with new Cordura high abrasion resistant 4 way stretch fabric allowing greater freedom of movement and flexibility. DWR finish repels water, oil & dirt. Articulated knee protection manufactured with Armortex abrasion resistant fabrics featuring DuPont Kelvar fibers. Large cooling rear vents, elastic waistband for improved comfort and zippered angled front pockets with pull tabs. 2 Side cargo phone/accessory pockets and High-Vis panels. Additional Hem protection prevents edge fraying. Featuring scannable NFC tag technology. UL classified in accordance with ASTM standard for leg protection. Meets ANSI, ASTM F1897-2020 & ASTM F3325-20 Class C standard.