We partnered with Polartec® to deliver this exceptionally comfortable, flame-resistant 14-zip top that holds up on the job. With moisture-wicking technology and breathable fabric, it's a go-to as a layering piece or on its own in warmer weather. FR Polartec 14 Zip Top Men's Flame-Resistant Polartec 14 Zip Top in Light Grey ModacrylicRayon, Size: XL by Ariat