What is Ripstop Fabric, and Why it Changed Military Uniforms Forever
- Pete Palazzolo
- 13 hours ago
- 10 min read
Look closely at many military uniforms and you will see a faint grid running across the fabric.
The squares may be small enough to disappear from a distance, but they are not part of the camouflage pattern. They are the most recognizable feature of ripstop fabric, a reinforced textile construction that has appeared in American combat uniforms from Vietnam-era jungle fatigues to modern OCP clothing.
Ripstop is often marketed simply as a tougher fabric. That description is not wrong, but it leaves out what makes the material important.
The purpose of ripstop is not to make a uniform impossible to damage. It is to prevent a small puncture or tear from spreading freely across a larger section of fabric. That ability allowed military designers to produce relatively lightweight clothing that could survive brush, equipment, rough terrain and field use without relying entirely on thick, heavy material.
What Is Ripstop Fabric?
Ripstop is a method of weaving fabric, not a particular fiber. A ripstop textile can be made from cotton, nylon, polyester, aramid or a blend of several materials. What makes it ripstop is the incorporation of heavier or stronger reinforcement yarns at regular intervals.
These yarns normally create the square or rectangular grid that can be seen when the fabric is viewed closely. The Federal Aviation Administration’s Parachute Rigger Handbook describes ripstop as a plain weave with heavier threads woven into the material in a boxlike pattern. Those heavier threads inhibit the tearing process and increase the fabric’s strength.
When a sharp branch, piece of equipment or rough surface starts a tear, the damage eventually encounters one of the reinforced yarns. The reinforcement may stop or slow the tear instead of allowing it to continue across an entire sleeve, trouser leg or equipment panel.
Ripstop does not mean:
The material cannot be punctured
Every ripstop fabric has the same strength
The fabric is automatically waterproof
The garment is always made from nylon
A damaged section will never require repair
It means the fabric has been engineered to provide additional resistance to tear propagation.
The actual performance still depends on the fiber, weight, thread count, reinforcement yarn, coating, finish and overall quality of construction. National Institute of Standards and Technology research has similarly described ripstop weaves as fabric constructions used to improve tear resistance and tensile properties.
Why Lightweight Military Clothing Needed Reinforcement
A military could make extremely durable uniforms by using thick canvas or other heavy fabrics, but the result would be hot, stiff and uncomfortable.
That becomes a serious problem when soldiers must move for miles while carrying weapons, ammunition, water, armor, radios and other equipment. Clothing needs to provide durability without adding unnecessary weight or trapping excessive heat.
Lightweight fabric creates its own problem. Once thin material is punctured, an ordinary tear may continue growing under movement and tension.
Ripstop offered a compromise.
Instead of making the entire garment substantially heavier, textile manufacturers could reinforce the weave at regular intervals. The resulting material remained relatively light while gaining a built-in structure intended to contain damage.
This balance made ripstop particularly useful for:
Hot-weather combat uniforms
Parachute canopies
Sleeping bags
Ponchos and shelters
Pack components
Wind-resistant garments
Lightweight field equipment
The technology was not limited to clothing, but combat uniforms would become one of its most familiar military applications.
Ripstop Enters the Vietnam-Era Uniform System
Ripstop became especially visible in U.S. military clothing during the Vietnam War.
The tropical environment placed enormous strain on uniforms. Soldiers operated through thick vegetation, high heat, heavy rain, mud and persistent humidity. Clothing needed to be lighter and more practical than many earlier field uniforms while remaining capable of handling constant contact with brush and equipment.
The U.S. Army Center of Military History states that troops depicted in its 1965 American Soldier presentation wore a two-piece olive green tropical combat uniform made from ripstop cotton poplin. The uniform had been developed during the early 1960s.
These uniforms are commonly known today as jungle fatigues.
Different generations of the tropical combat uniform used changing pocket arrangements, buttons, construction details and fabrics. Early examples are especially interesting to collectors because the Army was still refining the design around actual field experience.
The later ripstop uniforms offered a practical improvement for jungle conditions. They were relatively lightweight, and the reinforcement grid helped limit damage when the fabric encountered branches, equipment and rough surfaces.
Ripstop did not eliminate wear. Original jungle fatigues frequently show fading, repairs, missing buttons, torn pockets and alterations. However, the weave gave a lightweight tropical uniform a better chance of remaining usable after minor damage.
From Jungle Fatigues to the Battle Dress Uniform
The lessons of tropical combat clothing did not disappear when the Vietnam War ended.
Ripstop construction continued into later American uniforms, including versions of the Battle Dress Uniform, or BDU.
Department of Defense specification MIL-DTL-44048H covered several combat-coat configurations. Its classifications included woodland, desert and black combat coats made from nylon-and-cotton ripstop material. The same specification also established garment construction details, reinforcement requirements and bartack locations around stress points.
This is an important distinction.
The durability of a military uniform does not come from ripstop fabric alone. The weave works together with:
Reinforced elbows and knees
Bartacks at high-stress locations
Properly constructed pocket corners
Strong thread
Secure seams
Durable buttons and fasteners
Garment patterns that permit movement
A poorly constructed garment made from ripstop can still fail at a seam or pocket attachment. A well-made military uniform combines the fabric with construction intended for field use.
M81 Woodland BDU uniforms became one of the most recognizable examples of this approach. Depending on the contract and intended climate, BDU garments could be produced in heavier twill or lighter ripstop versions.
The lighter ripstop BDU became particularly desirable for warm weather because it offered a less bulky alternative to heavier uniform cloth.
NYCO: Combining Nylon and Cotton
Many American ripstop combat uniforms use a blend commonly called NYCO, meaning nylon and cotton.
A 50/50 nylon-cotton blend has been widely used in American combat clothing. Army material discussing the introduction of the Army Combat Uniform described its fabric as the same 50/50 nylon-cotton ripstop used in the summer-weight BDU.
The two fibers contribute different characteristics.
Cotton generally provides a familiar feel, breathability and comfort against the body.
Nylon contributes strength, abrasion resistance and reduced weight compared with relying on an equally durable all-cotton construction.
The blend is then woven with the reinforcement grid that defines ripstop fabric.
That does not mean all NYCO is identical. Military specifications may establish requirements for fabric weight, weave, coloration, water repellency, infrared performance, insect-repellent treatment and other characteristics.
MIL-DTL-44436 remains the Department of Defense specification for wind-resistant nylon-and-cotton poplin cloth used in several uniform applications. Current DLA documentation includes classes produced in Operational Camouflage Pattern colors.
The Army Combat Uniform Continues the Ripstop Tradition
The Army Combat Uniform changed the appearance and layout of American field clothing, but it continued the use of ripstop material.
The ACU introduced features such as angled chest pockets, sleeve pockets, a stand collar and attachment areas for hook-and-loop insignia. Army reporting described the uniform’s 50/50 cotton-and-nylon fabric as a practical, low-maintenance component of the design.
The camouflage pattern has changed from Universal Camouflage Pattern to Operational Camouflage Pattern, but the reinforcing grid remains visible in many current uniforms.
This means a modern OCP uniform and a Vietnam-era jungle jacket can look completely different while sharing the same basic textile principle.
Both use regularly spaced reinforcement yarns to help a relatively lightweight field fabric resist the spread of tears.
Why Ripstop Works Well for Combat Uniforms
It Helps Contain Damage
A small tear in ordinary lightweight fabric can enlarge every time the wearer bends, kneels or pulls against the material.
Ripstop reinforcement interrupts that progression. The uniform may still require repair, but a contained hole is far easier to manage than a tear running across an entire panel.
It Provides Strength Without Excessive Weight
Rather than making every thread heavier, ripstop concentrates additional strength into a repeating grid.
That makes the construction useful for garments intended to remain light enough for warm-weather movement.
It Makes Field Repairs More Practical
The grid can help keep the edges of a damaged area relatively controlled until the garment can be sewn or patched.
A field repair is more likely to hold when the surrounding material has not continued unraveling or tearing far beyond the original damage.
It Can Be Used with Different Fibers
Ripstop is not tied to one material.
A manufacturer can use cotton ripstop for comfort, NYCO ripstop for uniforms, lightweight nylon ripstop for sleeping equipment or specialized fibers for protective clothing.
This adaptability is one reason the construction has remained relevant across generations of military equipment.
Ripstop Versus Twill
Ripstop and twill are sometimes discussed as though one is always better than the other.
In reality, they are different fabric constructions with different strengths.
Ripstop usually has a visible square reinforcement grid. It is often selected when designers want relatively light material with improved resistance to spreading tears.
Twill has a diagonal weave pattern. Military twill uniforms are commonly heavier, smoother and highly resistant to general wear and abrasion, but they may also feel warmer and bulkier.
A hot-weather ripstop BDU may be more comfortable during summer use. A heavier twill BDU may be preferable for cooler weather, shop work or environments where constant surface abrasion matters more than weight.
The intended use is more important than simply asking which material is strongest.
Not Every Ripstop Fabric Is the Same
The word “ripstop” alone does not tell you everything about a garment.
A thin commercial polyester ripstop poncho and a military NYCO combat uniform can both have a reinforcement grid, but they will behave very differently.
Important differences include:
Fiber Content
One hundred percent cotton ripstop may feel softer and handle heat differently than a nylon-cotton blend. Nylon ripstop is often used when low weight, packability and water resistance are priorities.
Fabric Weight
A heavier fabric generally provides more material to resist abrasion, but it also adds warmth and bulk.
Size of the Reinforcement Grid
Some ripstop grids are fine and difficult to see. Others use larger, more prominent squares.
Coatings and Treatments
Ripstop may be coated for water resistance or treated for characteristics such as insect repellency. A coating can change breathability, flexibility and long-term care requirements.
Garment Construction
Reinforced fabric cannot compensate for weak stitching, poorly attached pockets or low-quality fasteners.
This is why genuine military specifications address more than the cloth itself.
Ripstop Beyond the Combat Uniform
Military use of ripstop extends well beyond shirts and trousers.
Parachutes are one of the clearest examples. The FAA’s rigger handbook identifies ripstop nylon as a primary canopy material and explains how heavier threads form the boxlike reinforcement pattern that inhibits tearing.
The same general principle appears in:
Sleeping bags
Ponchos
Tarps
Wind layers
Pack liners
Equipment covers
Bandoleers
Shelter components
In each case, a small puncture could otherwise spread through a broad panel of lightweight material.
The exact construction is adapted to the job. A sleeping bag shell must remain light and flexible. A combat uniform must balance strength with breathability. A tarp may require coatings and reinforced attachment points.
Ripstop is the shared principle, not a guarantee that every item has identical performance.
How to Identify Ripstop Military Clothing
The easiest method is to examine the material in good lighting.
Look for a repeating square or rectangular grid woven directly into the cloth. The grid should remain visible regardless of the printed camouflage pattern.
Do not confuse the ripstop grid with:
Printed pixel camouflage
Fabric creases
Quilting stitches
Surface embossing
A mesh lining
The military label may also identify the fiber content. Common descriptions include:
100% cotton
50% nylon / 50% cotton
Nylon and cotton ripstop
NYCO ripstop
Wind-resistant poplin
Some labels do not explicitly use the word “ripstop,” so the visible weave remains useful when identifying a garment.
Inspecting Used Ripstop Surplus
Ripstop slows the spread of damage, but used military clothing should still be inspected carefully.
Pay particular attention to:
Knees and seat panels
Elbows
Crotch seams
Pocket corners
Cuffs
Drawstring openings
Areas beneath previous patches
Fabric surrounding repaired holes
Hold the garment toward a light source. Thin areas may appear brighter than the surrounding cloth.
A small, properly repaired hole may have little effect on a field garment. Extensive thinning is more concerning because the reinforcement yarns cannot restore material that has already been worn away.
Also inspect any coatings or interior laminates separately. A fabric can remain structurally intact while an old waterproof layer begins peeling or separating.
Current Ripstop Examples at Michigan Military Supply
The following products were shown as available when this article was prepared on August 5, 2026. Inventory and available sizes may change after publication.
USGI OCP Scorpion Ripstop Army Combat Field Top
This genuine U.S. issue combat top uses a 50/50 nylon-cotton ripstop fabric with reinforced elbows. It provides a modern example of the same tear-control principle found in earlier jungle and BDU uniforms.
USGI OCP Scorpion Ripstop Army Combat Field Pants
The matching field trousers use 50/50 nylon-cotton ripstop and include reinforced knees, cargo pockets and adjustable ankle cuffs.
USGI M81 Woodland BDU Button-Up Top
This M81 Woodland top shows how ripstop carried forward into the BDU era. The current listing identifies a 50/50 cotton-and-nylon ripstop construction with reinforced elbows.
USGI Desert Night Camouflage Trousers
These genuine Desert Night Camouflage trousers are constructed from 50/50 nylon-cotton ripstop and include reinforced knees. The product page showed three remaining at the time of verification.
USGI MSS Intermediate Cold Weather Sleeping Bag
Ripstop is not limited to clothing. This Intermediate Cold Weather sleeping bag uses a water-resistant ripstop nylon shell to help protect the bag without creating an excessively heavy exterior. The page showed one remaining when checked.
A Small Grid with a Large Impact
Ripstop fabric is easy to overlook.
To most people, it is simply the faint grid visible on a pair of cargo pants or a military jacket. In practice, that grid represents a solution to one of the oldest problems in field clothing.
How do you make a garment light enough to move in, but durable enough to survive damage?
Ripstop does not make fabric indestructible. It does something more practical. It gives lightweight material a better chance of remaining usable after something goes wrong.
That principle proved valuable in the jungles of Vietnam, continued through the BDU and ACU eras and remains visible in modern OCP uniforms and field equipment. The camouflage patterns have changed. The pocket layouts have changed. The fibers and treatments have continued to evolve.
The grid remains.
Sources
Federal Aviation Administration, Parachute Rigger Handbook
U.S. Army Center of Military History, The American Soldier, 1965
Defense Logistics Agency, MIL-DTL-44048H, Coats, Camouflage Pattern, Combat
Defense Logistics Agency, MIL-DTL-44436, Cloth, Wind Resistant Poplin, Nylon/Cotton Blend
U.S. Army Acquisition Support Center, Providing the Capabilities Soldiers Need Now
U.S. Army, “Army Always Seeking Improvements to Combat Uniform”
U.S. Army, “ACU Pattern Officially Retired; New Uniform Improvements on the Way”
National Institute of Standards and Technology, Performance of Environmentally Stressed Firefighter Protective Clothing
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