Firefighter turnout gear is the protective clothing ensemble worn during structural firefighting, designed to shield the body from extreme heat, flame, water, and physical hazards. A full set, including the coat, pants, helmet, gloves, boots, hood, and breathing apparatus, weighs between 45 and 75 pounds and costs departments roughly $3,500 to $5,000 per firefighter. The gear is also called “bunker gear,” a term that dates back to when firefighters kept their equipment next to their bunks for fast response.
The Three-Layer System
Every piece of turnout gear built for structural firefighting uses a three-layer composite. Each layer handles a different threat, and the system only works when all three are intact and in good condition.
The outer shell is the visible exterior of the coat and pants. It provides the first line of defense against heat, flame, and abrasion. Because it takes the most punishment, it is the layer most often associated with overall gear performance. It needs to resist tearing, charring, and direct contact with sharp debris.
The moisture barrier sits behind the outer shell. Its job is to prevent water, blood, and other liquids from soaking through to the firefighter’s body. This matters for more than comfort: if liquid penetrates the inner layers, it can compromise the gear’s ability to insulate against heat. The moisture barrier is typically a permeable film laminated to a woven or nonwoven backing material. Woven-backed barriers tend to last longer than nonwoven versions.
The thermal liner is the innermost layer, the one closest to the skin. It provides the bulk of the gear’s heat insulation. The liner is a double layer: a face cloth quilted to a nonwoven batting. The face cloth wicks perspiration away from the body to keep the firefighter drier, while the batting traps dead air to maximize thermal protection, similar in principle to how a down jacket works.
What the Gear Is Made Of
Turnout gear relies on synthetic fibers engineered to resist extreme temperatures. The most widely used is Nomex, a meta-aramid fiber that does not melt. Instead of liquefying like nylon or polyester would, Nomex chars and hardens when exposed to flame, forming a protective barrier. It decomposes only between 370 and 430°C (roughly 700 to 800°F) and retains its structural properties up to 370°C. The most common commercial blend, Nomex IIIA, combines 93% Nomex with 5% Kevlar (a para-aramid fiber known for cut and tear resistance) and 2% antistatic fiber.
Higher-spec gear often uses PBI Gold, a blend of 60% Kevlar and 40% polybenzimidazole. This fabric will not ignite or melt and keeps its flexibility even after direct flame exposure, which is why it appears in gear built for professional structural firefighters. Other specialty fibers like Kermel (a polyamide-imide) show up where resistance to physical damage is the priority. All of these materials are inherently flame-resistant, meaning their protection cannot be washed out or degraded by laundering.
How Heat Protection Is Measured
The key metric for turnout gear fabrics is the Thermal Protective Performance (TPP) rating. In testing, a small fabric sample is exposed to a combination of direct flame and radiant heat while a sensor on the opposite side measures how quickly heat passes through. The TPP value equals the exposure time multiplied by the heat flux. A higher number means the fabric keeps dangerous heat away from the skin longer, giving a firefighter more time before a second-degree burn would occur.
TPP testing follows NFPA 1971, the national standard that sets minimum performance requirements for structural firefighting gear. The test essentially answers one question: how many seconds does a firefighter have before the heat penetrating the fabric would cause a burn? Gear manufacturers balance this protection against breathability, because a suit that blocks all heat also traps body heat inside, which creates its own danger. That tradeoff is measured by Total Heat Loss (THL), a value reflecting how well the gear lets the body cool itself through evaporation.
What a Full Set Includes
A complete turnout ensemble breaks down by weight roughly as follows: the bunker jacket accounts for about 15 pounds, bunker pants about 10, boots another 10, and the helmet around 5. The self-contained breathing apparatus (SCBA) with its air cylinder adds approximately 30 pounds, with the face mask adding another 1.5 pounds. A radio and belt contribute about a pound more.
Based on 2025 municipal procurement data, a single set of gear (coat, pants, helmet, gloves, boots, and hood) runs between roughly $3,400 and $5,150 depending on the manufacturer and specifications chosen. The coat alone ranges from about $2,185 to $2,456, with pants between $1,409 and $1,522. Helmets vary widely, from $390 to $656. These figures do not include the SCBA, which is a separate and significant expense.
Built-In Safety Features
Modern turnout coats include a Drag Rescue Device (DRD), a webbing strap system integrated into the upper back of the jacket. If a firefighter becomes incapacitated, another rescuer can lift a flap between the shoulder blades, pull out the strap, and drag the downed firefighter horizontally to safety. The design allows a controlled extraction without needing to lift the person, reducing strain on the rescuer while keeping the firefighter stable during the drag. NFPA 1971 requires a DRD in all compliant structural firefighting coats.
Reflective trim on the coat and pants serves a visibility function in smoke and low-light conditions. The trim must meet specific retroreflectivity and fluorescence standards so that firefighters remain visible to each other on the fireground.
PFAS and Health Concerns
A growing concern in the fire service involves PFAS (per- and polyfluoroalkyl substances), a class of manufactured chemicals used in turnout gear for their thermal stability and ability to repel oil and water. PFAS are particularly common in moisture barriers, where their water-resistant properties are central to the barrier’s function.
The problem is that PFAS have been linked to cancer and other serious health effects. Studies have found that firefighters carry higher blood levels of certain PFAS compared to the general population, partly due to repeated skin contact with contaminated gear. The National Institute of Standards and Technology has conducted studies confirming the presence of PFAS across multiple layers of turnout gear, not just the moisture barrier. This has pushed manufacturers and standards organizations to explore PFAS-free alternatives, though the transition is still underway.
Decontamination After a Fire
Turnout gear absorbs carcinogenic byproducts during every fire, particularly polycyclic aromatic hydrocarbons (PAHs) from burning materials. Removing these contaminants quickly matters. Research from the Northwell Health Firefighter Cancer Study found that “wet” field decontamination, scrubbing gear with dish soap and water on scene, reduced PAH contamination on turnout jackets by an average of 85%. For exposed skin, cleansing wipes reduced PAH levels on the neck by 54%.
Field decontamination is a stopgap, not a replacement for professional cleaning. Departments typically send gear through advanced cleaning processes at regular intervals and after significant exposures. NFPA 1851, the standard governing gear care, sets timelines for inspection, cleaning, and mandatory retirement. Turnout gear has a maximum service life of 10 years from its manufacture date, regardless of its apparent condition, because the protective properties of the materials degrade over time in ways that are not always visible.