FR Rev 1/4 Zip TopAriat fire-resistant knit jackets are constructed with the ultimate comfort, technology and durability in mind. FR fabric is soft against the skin and the taped inside back seam eliminates irritation. Plus, moisture management will keep you cool and dry. Permanently flame resistant Greater Arm Mobility seam construction for maximum range of motion 10 oz midweight FR fleece Ribbed cuffs Zip chest pocket Standing collar 100% cotton.