The ProFlex 7991 Cut-Resistant Protective Arm Sleeves feature a breathable, comfortable tungsten fiber knit material that protects arms and wrist with ANSI/ISEA 105-2016 level A9 cut protection. Crafted with a pre-curved design and flex zones in the elbow, these arm sleeves make for a natural and comfortable fit. They also feature a soft neoprene thumb loop and adjustable arm straps to ensure a secure fit that leaves no part of the arm exposed to potential cut hazards. Tungsten fiber knit is tested to ANSI/ISEA 105-2016 level A9 cut protection and ANSI/ISEA 105-2016 level 4 abrasion-resistance for safety around the sharpest and roughest materials. Classified by the weight needed to cut through, ANSI/ISEA 105-2016 level A9 is the highest cut rating with a measure of 6,000+ grams. Cut sleeves are best for workers in material handling, demolition, construction, automotive, manufacturing, assembly and many other industries.