Soccer Ball Size 4: A Complete Guide for Youth Players

Soccer Ball Size 4 is the standard intermediate soccer ball used in youth leagues. It is slightly smaller and lighter than the full-size (Size 5) ball, making it ideal for children 8–12 years old. Using the right ball size helps young players develop confidence and control. In this guide we’ll cover age recommendations, dimensions, material and inflation details, key differences between size 4 vs size 5, and tips on choosing the best size 4 soccer balls. We also include expert advice, industry stats, and a handy FAQ section to help coaches and parents.

Alt: A young soccer player in green kicks an orange size 4 soccer ball on the field.

Why Soccer Ball Size Matters

Choosing the correct ball size is crucial for safety and skill development. A ball that’s too large or heavy can strain a child’s muscles or make the game frustrating. For example, a size 5 ball (the adult size) is heavier and could “actually cause injuries to muscles and tendons if a child tries kicking [it]”. By contrast, the size 4 ball’s lighter weight and smaller circumference allow kids to control and dribble more easily. Proper sizing also follows official standards: youth leagues around the world use size 3, 4, or 5 depending on age, as regulated by bodies like FIFA.

• Youth Soccer Ball Sizes (by age): Footballs come in sizes 1–5. The standard chart is:
  • Size 1: 18–20″ circ (46–51cm), ~200g – Ages 3 & under.
  • Size 2: 20–22″ (51–56cm), 250–280g – Ages 3–5.
  • Size 3: 23–24″ (58–61cm), 300–320g – Ages 5–8.
  • Size 4: 25–26″ (63–66cm), 350–390g – Ages 8–12.
  • Size 5: 27–28″ (69–71cm), 410–450g – Ages 12+ (adults/pros).

This age-size chart is reinforced by official sources and retailers: “A size 4 soccer ball is used primarily by youth players in the 8–12 age range. The dimensions of a size 4 ball are 25–26″ in circumference and 350–390 grams in weight”. In practice, most clubs and coaches follow these guidelines so that players can handle the ball safely and learn technique before moving up to the heavier size 5.

Size 4 Soccer Ball – Specs and Age Range

The Size 4 soccer ball is engineered as the “intermediate” or youth ball. It is explicitly designed to fit the 8–12 age group. Dimensions and specs are roughly:

• Circumference: 25–26 inches (63–66 cm).
• Diameter: ~8.0–8.5 inches (about 20–21.5 cm).
• Weight: 350–390 grams.

In comparison, a Size 5 (adult) ball is 27–28″ and 410–450g. These dimensions come from official ball specifications (FIFA Law 2) and gear guides. For example, a sports retailer notes: “Size 4 is used for ages 8–12… the weight of the ball makes it easier for players in this age group to develop skills such as dribbling”. The slightly smaller size and lighter weight help children learn control.

The table below shows standard sizes and uses:

• Size 3: 23–24″, 300–320g – for ages ~5–8 (first real game ball).
• Size 4: 25–26″, 350–390g – for ages ~8–12 (youth ball for practice/matches).
• Size 5: 27–28″, 410–450g – for ages 12+ (standard adult match ball).

These values are consistent with multiple sources. For instance, a ball guide lists Size 4 as exactly “63–66 cm (25–26 inches) and 359–390 grams”. Another guide highlights that for 8–12 year-olds, a 25–26″ ball enables skill development like “dribbling, passing, and shooting”.

Key Benefits of the Right Size 4 Ball

• Easier Control: A size 4 ball is easier for children’s smaller feet to maneuver. Young players can kick, pass, and stop the ball with proper technique.
• Skill Development: Coaches note that this intermediate ball helps kids refine skills. As one guide explains, size 4 is “ideal for developing skills like dribbling, passing, and shooting before transitioning to full-size balls”.
• Safety: Lighter weight means less strain. A heavy adult ball could hurt a child’s legs or cause injury. Using the correct size 4 ball reduces the risk of strains or joint stress.
• Confidence: Playing with a properly sized ball lets children enjoy the game more. It prevents frustration from missing passes or controlling a too-large ball.

Size 4 vs Size 5 Soccer Ball

A common question is how Size 4 and Size 5 balls differ. The key distinctions are:

• Circumference: Size 4 is 25–26″; Size 5 is 27–28″. A size 5 ball is visibly larger.
• Weight: Size 4 weighs about 350–390g, whereas Size 5 is 410–450g. A heavier ball needs more kick power.
• Age/Use: Size 5 is used by players 12 and up (teens/adults) in games. Size 4 is for 8–12 year-olds, in youth leagues and training.
• Play Feel: Size 5 provides the “real” ball feel for competitive play. Size 4 feels softer and less bouncy, which can aid beginners.

Why these differences matter: An 8–10 year-old can usually handle a size 4 ball comfortably, but a size 5 may be too heavy. The smaller size also reduces kicking errors and protects younger legs. As one expert notes, a size 4 ball “makes it easier to develop skills such as dribbling”. In contrast, using a size 5 too early can hinder technique: players might struggle to control it and waste effort trying to kick it far.

However, once kids reach about age 12 or enter more competitive play, they transition to Size 5. The larger ball has more momentum and flight speed, matching adult play. Coaches often make sure teams practice with the same size ball used in games so players acclimate.

Materials and Construction

Like all soccer balls, size 4 balls are made of layered materials. Modern size 4 balls are typically constructed as follows:

• Outer Cover: Synthetic materials (usually polyurethane – PU, or sometimes TPU/PVC) are used for the outer casing. PU is favored for its softness, durability, and water resistance. A PU cover provides better touch and a quality finish. For youth balls, you’ll often find a durable PU surface that can handle outdoor use. Lower-cost balls might use PVC (a tougher plastic), which is less soft but cheaper.
• Panels: Traditional soccer balls have 32 panels (hexagons and pentagons) stitched or thermally bonded. Size 4 balls follow this pattern. For a ball of this size, panels are typically 3–4 inches across. Panel shape and stitching affect flight and control. More panels (e.g. 32) generally give a rounder, more consistent ball.
• Lining/Bonding: Beneath the outer cover are one or more fabric linings that give strength and shape. High-quality balls have multiple layers of polyester or cotton backing.
• Bladder: Inside the ball is an inner bladder that holds air. For youth balls, bladders are usually latex or butyl. Latex bladder balls feel softer and bounce well, but lose air faster. Butyl bladders (common in size 4 training balls) hold air longer, meaning the ball stays inflated through many uses (practical for kids who don’t always re-pump).

Over the last decades, soccer ball technology has improved a lot. We’ve moved from old leather balls that absorbed water, to fully synthetic balls that keep weight consistent in all weather. A good size 4 ball has a non-absorbent PU cover and a high-quality bladder and lining. This ensures the ball doesn’t get heavy when wet and maintains shape and pressure.

Key material points:

• PU vs PVC: PU gives a premium feel; PVC is more rugged and cheaper. Many best-selling youth balls use soft PU covers.
• Seams: High-end balls have hand-stitched or thermally bonded seams. Cheaper ones may be machine-stitched.
• Water Resistance: For match-play, a size 4 ball often has better water resistance (FIFA quality balls). Training balls can tolerate a bit more wear.

Remember to match material quality to use. For example, the Select Numero 10 Size 4 uses a soft PU cover and latex bladder (FIFA-approved), giving great touch for matches. A budget size 4 might use PVC. Always check product specs: look for mentions of “PU cover,” “butyl bladder,” and “FIFA Approved” or “IMS” (International Match Standard) certification for reliability.

Inflation Pressure and Care

Proper inflation is critical. Under-inflating makes the ball sluggish and harder to pass accurately; over-inflating can cause an unusually bouncy ball and increases risk of injury if it impacts a player. According to FIFA Law 2, adult match balls (Size 5) must be 0.6–1.1 atmosphere (600–1,100 g/cm²) = 8.5–15.6 PSI. Youth practice balls are often kept slightly softer.

General guidelines:

• Official Match Balls (Size 5): FIFA’s standard is 0.6–1.1 atm (8.5–15.6 psi). In practice, many coaches use about 0.8–1.0 atm (~12 psi).
• Size 4 (Training Ball): Many trainers recommend about 0.4–0.5 bar (5.8–7.3 psi) for older kids practicing. This lower pressure gives a little extra cushion, making kicks gentler. For youth matches, sizes 4–5 are often inflated to around 0.5–0.7 bar (7–10 psi) depending on coach preference.
• Starter Balls (Size 3): Even less, around 0.3–0.4 bar (4.4–5.8 psi) for very young kids.

Retailers and sports stores generally list recommended pressure. For instance, European Sports notes that soccer balls sizes 3–5 share a general range of 8.5–15.6 PSI per FIFA. For more control in practice, they advise staying on the lower end. A pump with a gauge (or regular pressure checks) is wise. Many youth players will need the coach or parents to re-inflate balls periodically; latex bladders can lose air faster. Always check that the ball feels firm but not rock-hard.

Ball Care: Keep your size 4 ball in good shape by:

• Using a pump to maintain correct pressure. Specialized football pumps or electric inflators (with needle) work well.
• Avoiding extreme weather. Don’t leave balls outside in heavy rain or scorching sun for hours, as this can damage the materials.
• Cleaning: If the ball is muddy or dirty after a game, wipe it down with a damp cloth and let it dry naturally. This preserves the material.
• Storage: When not in use, store inflated balls indoors or in a shaded area. Don’t sit on them or expose them to sharp objects.
  Properly maintained balls last much longer, which saves money. We recommend checking inflation and ball condition weekly if used often.

Training and Development (Ages 8–12)

Players aged 8–12 are in a key developmental stage. They are transitioning from basics to more advanced skills. Using a size 4 soccer ball during training is essential for this age group. Coaches and sports scientists agree that the right ball size helps children build technique without injury or frustration.

• Skill Development: Youth coaches use size 4 balls so players can focus on fundamentals: dribbling, passing, and shooting. The reduced size and weight mean players can make clean contact and see results. As noted in training guides, size 4 “offers a good balance between bounce and control for developing players”. Exercises like passing drills, juggling, and small-sided games all benefit from the easier-to-handle ball.
• Confidence: At 8–12, many players are just starting competitive soccer. Using an appropriately sized ball builds confidence – kids feel successful when they can actually kick the ball to teammates or the goal. If they used a heavy size 5 too soon, they might give up or even get hurt. The size 4 ball ensures the game stays fun and safe.
• League Standards: In many youth leagues (recreational and travel teams), size 4 is required for U9–U12 divisions. For example, under-10 through under-12 leagues often mandate size 4. Coaches should always verify league rules and have players practice with the same ball size used in games.
• Growth: By age 11–12, some stronger kids may start practicing with size 5 to prepare for older play. But generally, keep them on size 4 until about U13. One source summarizes this transition: “Size 4 (8-12 years) – Great for developing skills before moving to a full-size ball”.

According to a 2023 survey, youth soccer participation is booming: “outdoor soccer participation among those ages 6 or older reached nearly 14.1 million players”, an all-time high. Importantly, “the largest percentage of players ages 6 or older is those ages 6-12” – roughly one-third of all players. This highlights how critical it is to gear these young athletes properly. With millions of kids playing, ensuring they have the correct size 4 soccer ball will help develop the next generation of players safely.

Choosing the Best Size 4 Soccer Ball

When shopping for a size 4 soccer ball, consider these factors:

1. Quality and Material: Look for a high-quality PU cover and a durable bladder. Brands often label their balls as “FIFA Quality” or “IMS” (International Match Standard) if they meet official guidelines. For practice and youth play, many clubs like a rugged but affordable ball. A well-reviewed youth ball will have good stitching or thermal bonding, a quality bladder (butyl for air retention), and a soft feel. Recommended materials: “PU (polyurethane) is the best material for match or high-quality balls”.
2. Surface and Grip: A textured surface can help ball control in wet or dry conditions. Modern balls have grooves or patterned finishes. For example, official match balls (even size 4 versions) often have a textured PU for better grip. A ball like the Adidas Starlancer or Nike Flight (youth version) features such tech for consistent touch.
3. Weight & Inflation: Verify that the weight is within 350–390g (it usually is if labeled size 4). Use a pressure gauge to inflate to recommended psi (see above). Balls often have the ideal psi printed near the valve. Always bring a pump to practice.
4. Durability: Kids play rough, so durability matters. A double-stitched or reinforced ball will last longer. Some training balls come with extra lining. Cheaper balls (PVC outer, low ply count) may tear or lose shape quicker. If the ball will see heavy use (school teams, travel clubs), invest in a mid-range or quality ball.
5. Design and Color: Bright patterns and team colors can be motivating for kids. Many size 4 balls come in vibrant prints. Just ensure any flocking (glitter, PVC) is safe.
6. Brand/Type: Some popular size 4 balls on the market include:
   • Adidas (e.g. Starlancer, MLS league balls) – known for consistent play and FIFA stamps.
   • Nike (Kids Legend, Nike Flight Youth) – modern design, ACC weather tech.
   • Select Numero 10 – a top-level youth ball (FIFA-approved), soft PU cover, great feel.
   • Under Armour (Desafio series) – durable training balls in Size 4.
   • Wilson (NCAA Vivido, Traditional) – used in college games, good for older youth.

   (We recommend checking updated reviews; brands update models yearly.)

Best Practices (Buying Guide)

• Budget: Expect to pay ~$20–40 for a quality size 4 ball. Training balls are cheaper ($15–20), while high-end match balls can be $40+.
• FIFA Stamp: If the ball will be used in matches (e.g. higher-level U12 games), look for a “FIFA Quality” or “FIFA Quality Pro” mark. This ensures the ball is true to size/weight.
• Return Policy: Buy from retailers that allow returns if the ball is defective or not the right feel.
• Accessories: Don’t forget a pump and spare needles. Many balls come with a needle but none of the right size. A portable ball pump is a great investment.

In our Soccer Ball Buying Guide we review the latest youth balls and provide real-world testing. Always read customer reviews (for durability) and consider what your league specifies.

FIFA Regulations and Standards

Although youth games use smaller balls, they still often follow FIFA’s technical standards. FIFA Law 2 (“The Ball”) sets minimum and maximum requirements for approved match balls:

• Material: Must be spherical and made of leather or other suitable (i.e., synthetic) materials. Modern size 4 balls use synthetic leather (PU) per this rule.
• Circumference: For adult match balls (Size 5), FIFA law requires 68–70 cm (27–28 inches). For reference, size 4 is 63–66 cm (25–26 inches).
• Weight: A size 5 ball must be 410–450 grams. Size 4 balls weigh 350–390g, under that range.
• Pressure: Official ball must be 0.6–1.1 atm (8.5–15.6 psi) at sea level. Youth balls use less, as noted above.

FIFA Quality Marks: If a ball (including size 4) carries the “FIFA Quality” or “FIFA Quality Pro” logo, it means it has passed rigorous testing for roundness, bounce, water absorption, etc. While these marks are most relevant for professional match balls, finding a size 4 ball with any official stamp is a plus. It guarantees the ball truly meets specifications for diameter and weight. Many reputable brands abide by these standards even on youth balls. For everyday training, IMS (International Match Standard) or no stamp is acceptable; just focus on build quality.

League Rules: Check with your club or league. Some youth leagues explicitly state “Size 4 balls only” for certain ages. Others may allow Size 5 for older kids or advanced teams. Whenever possible, align practice with game requirements (i.e., if U12 games use size 4, always train with size 4).

FAQ (Frequently Asked Questions)

Q: What age is a size 4 soccer ball for?
A: A size 4 ball is designed for youth players roughly ages 8–12. This corresponds to U9 through U12 youth leagues. It has a 25–26″ circumference and weighs about 350–390g, which is lighter and smaller than an adult ball.

Q: What is the difference between size 4 and size 5 soccer balls?
A: The main differences are circumference and weight. Size 4 is 25–26″, 350–390g, used by kids 8–12. Size 5 is 27–28″, 410–450g, for players 12+. A size 4 ball is easier for younger players to kick and control. At around age 12, most players switch to size 5 for official matches.

Q: How much should I inflate a size 4 soccer ball?
A: Generally, pump a size 4 to about 0.4–0.5 bar (5.8–7.3 PSI) for practice. This keeps it slightly softer for kids. For youth match play, some inflate up to ~0.6–0.7 bar (8–10 PSI) depending on conditions. Always check the ball’s valve (many list the ideal pressure). Avoid over-inflating – the ball should feel firm but not rock hard.

Q: Can adults use a size 4 soccer ball?
A: Size 4 balls are made for children. Adults might use them informally (e.g., small-sided games), but they generally prefer size 5. The feel is noticeably lighter and smaller, which may not suit adult training. Conversely, children should not use a size 5 too long, as it’s heavier and can slow skill development.

Q: What are the best size 4 soccer balls on the market?
A: Top youth soccer balls include well-known brands. For example, Nike and Adidas offer durable Size 4 balls (like the Nike Youth Flight or Adidas MLS ball) that mimic professional designs. The Select Numero 10 is a highly-rated size 4 ball with a soft PU cover (FIFA-approved). Under Armour’s Desafio and Wilson’s NCAA balls are popular in clubs. Ultimately, choose based on your budget and usage. Read reviews and ensure the ball’s material quality and construction fit your needs.

Q: Are Size 4 soccer balls used in futsal or other formats?
A: Futsal balls are different (size 4 futsal is smaller and heavier at 400-440g). The standard outdoor Size 4 ball we discuss is for grass or turf. Indoor soccer usually uses a weight similar to Size 4 (but with less bounce). Always get the right ball for your playing surface.

Conclusion

Soccer Ball Size 4 is an essential piece of equipment for any young player and coach. For ages 8–12, it provides the perfect balance of size and weight to develop proper technique and enjoy the game. In this guide we’ve covered everything from official dimensions and regulations to inflation, materials, and buying tips. Remember: using the correct ball size helps players learn faster and play safely.

To recap: a Size 4 ball is 25–26 inches around and 350–390 grams, and is ideal for youth leagues and training in that age group. When comparing to a size 5 ball, the main differences are weight and circumference. Always check league rules and focus on quality construction – PU covers and sturdy bladders – for the best play experience.

For coaches and parents: share this guide with others on social media, or leave a comment with your favorite size 4 ball recommendations! If you have any questions about choosing the right soccer ball or training gear, feel free to ask below. And don’t forget, for more tips on soccer equipment and training, check out our Soccer Ball Buying Guide and FAQs.