Flame resistant sweatshirts keep welders, rail crews and anyone working near heat or sparks warm without compromising on protection. This range is built around Portwest's Modaflame Knit fabric, a flame resistant knit that feels like a regular sweatshirt rather than stiff protective kit. Choose from crew necks, quarter zips and full zips, with hi-vis yellow and orange versions for rail and roadside work, plus women's fits so the whole team is covered properly. They layer well too: over an FR base layer on cold mornings, under an FR jacket when the weather really turns. Order online in minutes, or talk to a named specialist about sizing, layering and adding your company logo to FR garments. We respond within 24 hours.