Superior double-layer black knit sleeves are made with cut- and flame-resistant Protex yarn that offers ASTM cut-level 2 protection and good heat, spark and flame resistance. These sleeves will not support combustion. Sleeves withstood 675 grams of cut force during testing. Soft and comfortable, the knit sleeve conforms to your arm contours for all-day comfort. Fully washable, they are available in three lengths, all with or without thumb holes. Fully sewn with Protex thread. Black color. Canadian made. Applications include oil and gas industry, metal handling, automotive, metal fabrication, welding.