The football helmet evolved from almost nothing in the late 1800s to soft leather caps in the early 1900s, then to hard plastic shells beginning in 1939, face masks in the 1950s and today’s engineered helmets with energy-absorbing liners, lab-tested designs and position-specific models. Each major change responded to injuries, new materials and growing scientific understanding of head impacts. Helmets became mandatory in college football in 1939 and in the NFL in 1943. Modern helmets are very effective at preventing skull fractures and severe head injuries, but no helmet can prevent all concussions, which is why fit, technique and rules also matter.
The early days: little or no protection
In the early decades of American football, many players wore no head protection at all. The game featured mass formations and heavy collisions, and injuries were common. Some players experimented with simple devices, such as leather straps, earflaps or padded caps sometimes called head harnesses, mainly to protect the ears and scalp. These early pieces of equipment offered little protection against serious impacts and were often optional and inconsistent from player to player.
Timeline of the football helmet
| Era | Development |
|---|---|
| Late 1800s | Few players wear head protection; some use leather straps or head harnesses |
| Early 1900s | Soft leather helmets become more common |
| 1939 | Riddell introduces a plastic helmet with a suspension system |
| 1939 and 1943 | Helmets become mandatory in college football (1939) and the NFL (1943) |
| 1950s | Single-bar face masks appear, followed by more protective cages |
| 1970s | NOCSAE helmet safety standards introduced |
| 2000s to today | Energy-absorbing liners, lab testing and ratings, position-specific designs and soft-shell practice caps |
The leather helmet era
By the early 1900s, soft leather helmets had become common. They were often little more than stitched leather caps with some padding, sometimes with ear holes added so players could hear signals. Over the following decades, designs added more padding, a harder leather shell and suspension straps inside to keep the head slightly away from the shell. These leather helmets reduced cuts and scrapes and offered some protection, but they did little to absorb the force of hard hits. Still, as the game became faster, wearing a helmet became standard practice.
The move to plastic
In 1939, the Riddell company introduced a plastic helmet with an internal suspension system, a major step toward the modern helmet. Plastic shells were lighter, more durable and better at spreading the force of an impact. Early plastic helmets had problems, including shells that could crack, and the NFL briefly restricted them in the late 1940s before improved versions were allowed. By the 1950s, plastic helmets had become the norm across the sport. Around the same time, helmet use became compulsory, first in college football in 1939 and in the NFL in 1943.
Face masks arrive
As helmets protected the head better, facial injuries such as broken noses, lost teeth and cuts became a bigger concern. In the 1950s, single-bar face masks began to appear, and designs soon grew into multi-bar cages. Face masks changed how players tackled and blocked, and they led to new rules, including penalties for grabbing an opponent’s face mask. Today, face masks come in many configurations, with linemen often using fuller cages and skill players using lighter, more open designs that improve vision.
Safety standards and testing
In 1969, the National Operating Committee on Standards for Athletic Equipment (NOCSAE) was formed to develop performance standards for athletic equipment, and its football helmet standard was introduced in the early 1970s. Helmets sold for organized play in the United States are generally required to meet NOCSAE standards, and many leagues require recertification after a certain period. In more recent years, independent laboratory testing has added another layer of information. Virginia Tech’s helmet rating program, which began in 2011, rates helmets on their ability to reduce impact forces, and the NFL and NFL Players Association publish annual laboratory results to guide players and teams in choosing helmets.
Modern helmet technology
Modern helmets use advanced materials and engineering to manage impact energy. Features include:
- Energy-absorbing liners. Foam, air-filled pads or flexible structures that compress to absorb impact forces.
- Flexible or multi-layer shells. Designs that deform slightly on impact to reduce the force transmitted to the head.
- Custom fitting. Some helmets are fitted using head scans or adjustable internal systems.
- Position-specific designs. Helmets tuned for the types of impacts common at certain positions, such as linemen.
- Soft-shell practice caps. Padded covers worn over helmets in practice to add cushioning, used at many levels, including the NFL during parts of training camp.
- Sensors. Some programs use impact sensors to study head impacts in practice and games.
Helmets beyond the NFL
Helmet technology developed for professional players has gradually reached college, high school and youth football, though budgets and replacement cycles vary. Youth helmets are designed for smaller heads and lower-speed impacts, and many youth programs now emphasize flag football or reduced-contact formats for younger players. High schools typically replace or recondition helmets on a schedule and rely on athletic trainers and equipment staff to ensure proper fit. Helmet design has also influenced other sports, such as lacrosse and ice hockey, where manufacturers apply similar materials and testing methods.
The future of football helmets
Research continues into materials and designs that better reduce rotational forces, which are thought to play an important role in concussions. Manufacturers are experimenting with new liner structures, smarter fitting systems and data from impact sensors. Leagues and researchers also study how rule changes and coaching affect head impacts, recognizing that equipment is only one part of making the game safer.
What helmets can and cannot do
Modern helmets are very effective at preventing skull fractures and many severe traumatic brain injuries. However, no helmet can prevent all concussions, because concussions can result from rapid movement of the brain inside the skull even when the head itself is protected. That is why the sport has also changed rules and coaching. Leading with the crown of the helmet is prohibited at most levels, targeting and helmet-to-helmet hits are penalized, practice contact has been limited, and coaches increasingly teach shoulder-led tackling with the head out of contact.
How to choose and fit a helmet
- Buy a certified helmet. Look for a current NOCSAE certification label.
- Check independent ratings where available, such as laboratory test results.
- Get a professional fitting. Many equipment managers and retailers offer fitting services.
- Check the fit. The helmet should sit about an inch above the eyebrows, fit snugly without pressure points and not shift when the head moves.
- Secure the chin strap. It should be centered and tight enough to keep the helmet stable.
- Maintain and recertify. Inspect regularly and follow reconditioning and recertification requirements.
Common mistakes
- Wearing a helmet that is too loose or too tight.
- Using old helmets past their recommended lifespan or recertification date.
- Believing a helmet makes a player immune to concussions.
- Leaving the chin strap loose or unfastened.
- Modifying helmets in ways that may void certification.
Health note: concussions are serious injuries. Any player with suspected concussion symptoms should be removed from play and not return until cleared by a qualified healthcare professional. Follow your league’s equipment and safety rules.
Frequently asked questions
When did football helmets become mandatory?
College football required helmets in 1939, and the NFL made them mandatory in 1943.
When were face masks added to football helmets?
Face masks began appearing in the 1950s, starting with single bars before developing into multi-bar cages.
Do modern helmets prevent concussions?
They reduce the risk of serious head injuries, but no helmet can prevent all concussions.
