Double layer Sleeve Aramid. Sleeve is manufactured using para-aramid fibres to provide protection of arms against mechanical and thermal hazards. The sleeves are designed with thumb hole for ease of wearing. Certified to EN 388 - Mechanical Hazards, Abrasion Resistance - 1, Cut Resistance - 5, Tear Resistance - 4, Certified to EN 407 – Thermal Hazards, Flammability - 4, Resistance to contact heat - 1, Resistance to convective heat- 3, Resistance to radiant heat.