These seamless, heavyweight, 10-gauge TuffKut sleeves provide cut and heat protection while remaining comfortable for the user. Unlike aramids, these do not degrade in sunlight and can be bleached for cleanliness. Heavyweight TuffKut? material. Provides heat resistance comparable to aramid fibers. Bleachable. Will not degrade in sunlight. No thumb slot. Component materials comply with FDA regulations for food contact. ANSI Cut Level A6. ASTM F2992-15 Results = 3,547 grams. EN 407 Levels: X1XXXX.