The right ball depends on where you play. Indoor game balls use premium composite leather for grip and feel but wear quickly on concrete. Outdoor balls use tougher rubber or composite covers built to survive rough surfaces. Here are the best across both.
Our picks
Wilson Evolution Indoor Basketball
The most popular indoor game ball in US high schools. Superb grip and consistent feel for serious indoor play.
Check price on AmazonSpalding TF-1000 Legacy Basketball
Premium composite game ball with excellent moisture management and a soft, grippy feel.
Check price on AmazonSpalding NBA Street Basketball
Durable rubber cover built to survive concrete and asphalt. The go-to ball for outdoor courts.
Check price on AmazonWilson NCAA Replica Basketball
Composite cover that handles both indoor and outdoor use. A versatile, affordable all-rounder.
Check price on AmazonAs an Amazon Associate we earn from qualifying purchases. Prices and availability accurate at time of writing.
What to look for
Buying a basketball comes down to four factors: surface, size, material, and inflation. Get these right and the ball almost picks itself.
Surface: indoor, outdoor, or all-surface?
This is the single most important decision. Indoor balls (Wilson Evolution, Spalding TF-1000) use premium composite leather — they grip better, feel softer on your fingertips and shoot more consistently. The trade-off is they deteriorate fast on rough outdoor surfaces. Concrete and asphalt act like sandpaper on composite covers. If you only play in a gym, invest in an indoor ball. Outdoor balls use rubber or tough composite covers designed to survive tarmac and concrete courts. They're firmer to handle but they'll last years outdoors. All-surface balls split the difference — good enough for both, but not the best at either. Worth considering if you genuinely play mixed environments.
Ball size by age and competition
Using the right size matters for development — too big a ball builds bad habits. Size 7 (29.5", 623g) is the men's official size used from age 12 upwards and in all professional leagues. Size 6 (28.5", 567g) is the official women's size and is also used in youth competitions for 9–11 year olds. Size 5 (27.5", 470g) is the right ball for younger juniors up to around age 8. A handful of brands also make size 3 mini balls for very young children first learning to shoot.
Material: composite leather vs rubber
Composite leather (sometimes called synthetic leather) is the standard for game balls. It's softer, grips better in sweaty conditions and breaks in faster than genuine leather — which is why even professional leagues moved away from genuine leather. Rubber is harder-wearing, bounces more predictably on rough surfaces and is much cheaper. It doesn't grip as naturally but it doesn't need breaking in either. For training purposes rubber balls are often perfectly fine.
Inflation and bladder quality
A well-made ball holds pressure for weeks; a cheap one goes soft in days. The official NBA inflation range is 7.5–8.5 psi. Under-inflated balls feel heavy and don't bounce correctly; over-inflated balls are harder to control and can damage surfaces. Any basketball pump with a pressure gauge is worth the small extra investment — it's the single best way to keep any ball performing consistently.
- Indoor vs outdoor: Composite leather for gyms; rubber/tough composite for outdoor courts. Don't use an indoor ball on concrete.
- Size: Size 7 (men's 12+), Size 6 (women's, youth 9–11), Size 5 (juniors up to ~8). Always match ball size to player age.
- Grip & feel: Composite breaks in over a few sessions and grips better than rubber in play conditions.
- Pressure: Keep inflated to 7.5–8.5 psi. A ball pump with gauge is a worthwhile 'buy alongside'.
- Brand reliability: Wilson and Spalding dominate game-ball production. For outdoor/budget options, Molten and Baden are worth considering.
Handy converters
FAQ
Can I use an indoor ball outdoors?
You can, but you'll ruin it fast. Concrete and asphalt act like sandpaper on composite leather covers. Use a dedicated outdoor rubber or composite ball for street courts and save your indoor game ball for the gym.
What size basketball do I need?
Size 7 (29.5") for men's and boys aged 12+. Size 6 (28.5") for women's and youth aged 9–11. Size 5 (27.5") for juniors up to around age 8. Using the correct size develops proper shooting technique.
What PSI should a basketball be inflated to?
The official NBA range is 7.5–8.5 psi. Under-inflated balls feel heavy and bounce poorly; over-inflated balls are hard to control and can damage hardwood floors. A pump with a pressure gauge is the simplest way to keep the ball performing correctly.
How long does a basketball last?
A quality indoor composite ball used solely in a gym can last 3–5 years or longer if well cared for. Outdoor rubber balls typically last 1–3 years depending on surface roughness and frequency of play. Store balls at room temperature and away from direct sunlight to extend life.
What is the difference between the Wilson Evolution and the Spalding TF-1000?
Both are premium indoor composite game balls used widely at high school and college level. The Wilson Evolution has a slightly softer feel and is the more popular choice in US high schools. The Spalding TF-1000 offers excellent moisture management and a consistent grip. Preference tends to come down to feel rather than objective performance — either is an excellent choice.
Do I need to break in a new basketball?
Composite leather balls benefit from a break-in period of a few sessions, during which the cover softens and grip improves. Rubber balls need no break-in. Avoid using a new composite ball outdoors before it is properly broken in, as rough surfaces will damage it before it reaches peak feel.