Viking 3907FRWP-L flame-resistant insulated rain bib pants size L 31 in inseam

Viking 3907FRWP-L bib pants for cold, wet work

These flame-resistant insulated rain bib pants are built for men who need protection from fire hazards, heavy rain and low temperatures on the job. The polyester shell meets ANSI/ISEA 107 Class E and ASTM D6413 FR standards, while the insulated polyester lining adds warmth without a separate layer. A 31-inch inseam and a maximum waist of 36 inches fit size L wearers.

Performance in sustained cold and wet exposure

The 13.5 oz fabric weight and continuous polyester lining keep body heat stable during long shifts in freezing rain or sleet. Hook-and-loop waist tabs stay secure when layers shift under movement, and the open-ankle design lets the legs drain quickly so water does not pool inside the cuffs. Four outside pockets and one inside pocket remain accessible while wearing gloves.

Straightforward fit and common fit issues

Step into the bib, pull the shoulder straps up and press the hook-and-loop waist tabs — no zippers or snaps to fumble with in the cold. The fixed 31-inch inseam can run long for shorter workers, causing hem drag on ladders or grating. The maximum 36-inch waist leaves no adjustment margin for heavy base layers, so users near that limit should size up if possible.