{"product_id":"mens-fr-long-sleeve-base-layer-with-concealed-pocket-tan","title":"Bulwark Men's FR Long Sleeve Base Layer with Concealed Pocket","description":"\u003cp\u003eThe \u003cstrong\u003eBulwark Men's FR Long Sleeve Base Layer with Concealed Pocket\u003c\/strong\u003e is a CAT 1 arc-rated flame-resistant shirt designed to anchor your FR layered system. Built from Bulwark's Excel FR® fabric — a 5.5 oz. 90\/10 cotton-polyester blend — it delivers reliable arc flash and flame protection while staying lightweight and breathable enough for all-day wear. The concealed chest pocket adds discreet storage, and the heat-seal Bulwark® triangle at the collar signals FR compliance to safety managers without a word.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAT 1 Arc Flash Protection\u003c\/strong\u003e — Arc Rating ATPV 6.4 cal\/cm²; meets NFPA 70E requirements for CAT 1 PPE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcel FR® Fabric\u003c\/strong\u003e — 5.5 oz. (185 g\/m²), 90% Cotton \/ 10% Polyester; inherently flame resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture Management Finish\u003c\/strong\u003e — wicks sweat to keep you dry during high-exertion work\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConcealed Chest Pocket\u003c\/strong\u003e — one hidden pocket for secure, low-profile storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContrast Mesh Underarm Gussets\u003c\/strong\u003e — full range of motion with added ventilation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRaglan Sleeves\u003c\/strong\u003e — hemmed for a clean finish and unrestricted movement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Fabric Crewneck Collar\u003c\/strong\u003e — comfortable, durable, and snag-resistant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFR Compliance Indicator\u003c\/strong\u003e — heat-seal Bulwark® triangle at neck signals to safety managers that an FR undergarment is being worn\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHome Washable\u003c\/strong\u003e — standard home wash care; FR protection is inherent to the fabric, not a topical treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Bulwark\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStyle:\u003c\/strong\u003e MPS8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Tan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArc Rating:\u003c\/strong\u003e ATPV 6.4 cal\/cm²\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Category:\u003c\/strong\u003e CAT 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFabric:\u003c\/strong\u003e Excel FR® — 5.5 oz. 90% Cotton \/ 10% Polyester\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Moisture Management\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePocket:\u003c\/strong\u003e One Concealed Chest Pocket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Imported fabric, Made in USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCare:\u003c\/strong\u003e Home Wash\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eQuick Decision Guide\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeed a CAT 1 FR base layer for arc flash environments?\u003c\/strong\u003e → This shirt meets NFPA 70E CAT 1 requirements at 6.4 cal\/cm².\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilding an FR layered system?\u003c\/strong\u003e → Pair with FR pants or an FR coverall with a minimum 4 cal\/cm² arc rating to complete your CAT 1 ensemble.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking in hot or high-exertion conditions?\u003c\/strong\u003e → The moisture management finish and mesh underarm gussets help regulate temperature.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeed higher arc protection?\u003c\/strong\u003e → Ask us about CAT 2 and CAT 3 FR options from Bulwark.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does CAT 1 mean?\u003c\/strong\u003e\u003cbr\u003eCAT 1 (Category 1) is the entry-level arc flash PPE category under NFPA 70E. It requires a minimum arc rating of 4 cal\/cm². This shirt's 6.4 cal\/cm² ATPV exceeds that minimum, providing a margin of safety.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs the FR protection permanent?\u003c\/strong\u003e\u003cbr\u003eYes. Excel FR® fabric is inherently flame resistant — the protection is built into the fiber, not applied as a topical treatment, so it won't wash out over time.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan this be worn as a standalone FR shirt?\u003c\/strong\u003e\u003cbr\u003eYes for CAT 1 environments when paired with FR pants or an FR coverall. It functions as a base layer in higher-category layered systems.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat does the heat-seal triangle at the collar indicate?\u003c\/strong\u003e\u003cbr\u003eThe Bulwark® triangle signals to safety managers that the wearer has an FR undergarment on — useful for compliance verification in the field.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs this shirt available in other colors or sizes?\u003c\/strong\u003e\u003cbr\u003eCurrently available in Tan, XL. Contact us if you need additional sizes or colors.\u003c\/p\u003e","brand":"Bulwark","offers":[{"title":"XL \/ Tan","offer_id":52963416572223,"sku":"WW-SHRT-MPS8TN-XL","price":91.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0276\/2057\/3268\/files\/PS_BW_MPS8KH_F.png?v=1778609158","url":"https:\/\/www.bartlettman.com\/products\/mens-fr-long-sleeve-base-layer-with-concealed-pocket-tan","provider":"Bartlett Arborist Supply","version":"1.0","type":"link"}