Under Armor Basketball Bag: A Practical Guide (2026)

By Hazel Kendrick

An under armour basketball bag can carry your ball, shoes, practice clothes and water without falling apart after a season. This guide walks you through the factors that matter most, from ball capacity and shoe separation to strap comfort and zipper quality, so you can pick a bag that fits how you actually play. By the end, you will have a simple checklist to compare any under armour basketball bag against your own training schedule.

Step 1: Decide What You Need the Bag to Carry

Before you look at colors or logos, list what goes in your bag on a typical day. A player heading to a gym session with one ball, a change of clothes and a water bottle has very different needs than someone hauling two balls, a pair of basketball shoes, a towel and a laptop for school.

Shopping for one? See our guide: 4 Best Duffle Bags for Basketball Players Compared (2026).

Number of basketballs (one, two or more)
Whether you need a separate shoe compartment
Clothing volume, including a practice jersey and spare socks
Electronics such as a phone, earbuds or a tablet
Water bottle and snack storage

Write the list down. It becomes your filter for every bag you consider.

Step 2: Measure Your Ball and Check the Capacity

Basketballs come in different sizes. Men’s and women’s regulation balls are typically labeled as size 7 and size 6, while youth balls are size 5 or smaller. Many bags list their ball capacity by size, but the real test is whether your ball fits without forcing the zipper or squeezing the other contents.

How to Check Fit at Home

Measure the circumference of your ball with a flexible tape. A size 7 ball is about 29.5 inches around.
Compare that number to the bag’s listed ball compartment dimensions, not just the overall bag size.
Place the ball inside an empty bag and close the zipper. If you feel pressure on the seams, the bag is too tight for daily use.

Step 3: Evaluate Shoe Storage and Separation

Basketball shoes carry dirt, sweat and sometimes outdoor grit. Keeping them away from clean clothes is one of the most useful features a bag can offer. Look for a dedicated shoe compartment that is vented or lined, and check whether it sits in its own pocket or shares space with your gear.

Storage Feature	Why It Matters	Best For
Separate shoe compartment	Keeps dirty shoes away from clothes and electronics	Players who train daily
Vented or mesh panel	Lets moisture escape and reduces odor	Outdoor and sweaty sessions
Shared open space	Easy to pack, but mixes dirt with clothes	Casual use or light loads

Step 4: Check the Build Quality and Materials

Look closely at the fabric weight, stitching and zipper hardware. Heavier denier nylon and polyester blends generally resist abrasion better than thin fabrics, and metal or reinforced zippers tend to hold up longer than lightweight plastic ones. Manufacturers often publish fabric specifications, so check the product page for material details rather than relying on appearance alone.

Points to Inspect

Reinforced stress points at the handle and strap anchors
Double-stitched seams along the base
A water-resistant or coated base if you train outside
Zipper pulls that are easy to grip with cold or wet hands

Step 5: Test Strap Comfort and Carry Style

How a bag feels on your body matters as much as how much it holds. A backpack with padded shoulder straps and a sternum strap distributes weight across your back. A duffel is easier to grab and sling, but it can dig into one shoulder when fully loaded. Think about how far you walk between the car, the locker room and the court.

Many under armour basketball bag styles come in both backpack and duffel formats, so decide which carry method suits your routine before you compare features.

Step 6: Consider Extra Organization

Small pockets make daily life easier. A zippered pocket for your phone, a mesh slot for a water bottle and a separate compartment for small items like tape or a mouthguard can prevent the mess that builds up at the bottom of a bag. Check whether the bag’s interior is easy to clean, since spilled water or sweat can linger in unlined compartments.

Common Mistakes to Avoid

Buying by overall size alone. A large bag with an awkward ball pocket may still fail to hold your ball properly.
Ignoring shoe odor. Shoes packed without ventilation can make the whole bag smell within a few weeks.
Overloading the straps. Heavy loads on thin straps cause shoulder strain. Keep the total weight reasonable and distribute it evenly.
Skipping the zipper test. Open and close each zipper several times in the store or on the product photos before committing.
Forgetting about weather. If you walk outdoors in rain, a bag with a water-resistant base saves your gear.

Tips for Getting the Most From Your Bag

Empty the bag after every session and let shoes air out before packing them away.
Wipe the interior with a damp cloth once a month to prevent buildup.
Rotate your load so heavy items sit close to your back for better balance.
Keep a spare ball pump needle in a small pocket so you never lose it.

If you are also deciding on an inflation tool, our guide to ball pumps can help you find a model that fits your gear setup. Our overview of small ball air pumps covers options for basketballs and other sports balls.

Recommended gear

Several products pair well with a solid bag and make your hoops routine smoother.

Spalding NBA Official Game Ball works as a standard reference ball to check against your bag’s ball compartment size. View on Amazon
Wilson Evolution Indoor Game Basketball is a common indoor ball whose size you can measure before shopping for a bag. View on Amazon
Franklin Sports Basketball Ball Pump with Needles keeps inflation tools organized alongside your ball. View on Amazon

FAQ

What size bag do I need for a basketball?

Most adults fit a size 7 ball comfortably in a dedicated ball compartment or a main pocket with some room to spare. Check the bag’s internal dimensions and compare them to the ball’s circumference of about 29.5 inches.

Can I fit basketball shoes and a ball in the same backpack?

Yes, but a separate shoe compartment is strongly recommended. It keeps dirt and odor away from clothes and electronics and makes the bag easier to organize.

Are under armour basketball bags water resistant?

Some models include water-resistant bases or coated fabrics, while others do not. Check the product specifications for water resistance rather than assuming it.

Should I choose a backpack or a duffel for basketball?

Backpacks distribute weight across both shoulders and suit players who walk long distances. Duffels are quick to grab and sling but can strain one shoulder when heavily loaded.

How do I clean the inside of my bag?

Empty the bag, wipe the interior with a damp cloth and mild soap, and let it air dry fully before closing it. Avoid soaking the bag unless the manufacturer says it is safe.

How much weight can a basketball bag carry comfortably?

Keep the load light enough that you can wear it for a full walk without shoulder discomfort. If you regularly carry heavy items, consider a model with padded straps and a sternum strap, and consult a healthcare professional if you experience ongoing back or shoulder pain.

Do I need a bag with a ball holder?

A ball holder is helpful if you carry a basketball often, since it keeps the ball separate and secure. If you only carry a ball occasionally, a main compartment with enough space may be sufficient.

Conclusion

Choosing an under armour basketball bag comes down to matching capacity, shoe storage, build quality and comfort to your real routine. Measure your ball, plan your load and test the straps and zippers before committing. A bag that fits your habits will last longer and make every practice easier.

Ready to choose one?

About Hazel Kendrick

Hazel puts together our basketball gear guides, digging through specifications, manufacturer details and owner reviews so you don't have to.

About the author

Hazel Kendrick

Hazel Kendrick writes reviews and buying guides for Hoops Junkie.