The Under Armour Undeniable Duffle 3.0 bag is built to last and is the third evolution. This staple of gyms everywhere keeps getting better and better.

Under Armour bags are well-named thanks to their durability. The patented polyester mix is designed to be thrown, dragged, and to tough out mud, grass, rain, asphalt and virtually anything you realistically will throw at it. This bag's material is water-resistant on the bottoms and sides keeps everything in your bag dry and protected. This is topped off with a padded top grip handle and the comfortable, trademark HeatGear shoulder strap for ultimate comfort.

The large pocket in the front of the bag offers the perfect spot for cell phones, wallets, and other smaller things that might otherwise get lost in the gym bag shuffle. The biggest pocket on the bag is vented, perfect for airing out laundry and shoes.

Regardless of what size you buy, you will be pleasantly surprised by the roominess of the bag. Given that there are multiple sizes of the bag, it can sometimes be difficult to select the right size for you. While it could use a water bottle holder on the outside of the bag and the shoe compartment may be a bit small for some, the number, size and capacity of the inside pockets has made this bag a favorite among buyers.

The typical lifespan of the material may be a bit shorter than some customers may expect; with typical use, it should last at least a year.

The Adidas Diablo Small Duffel Bag is the perfect bag for a quick trip to the gym or for sports practice of any kind. Adidas bags are always of high quality, and this bag is made of tough polyester that looks good, feels good and lasts for a long time.

Despite its small size, the Diablo can hold quite a load and should be ideal for your needs if you're looking for a simple, tough bag to take with you to the gym, carrying your shoes, clothes and any other equipment.

On the plus side, the inside of the bag is deceptively large! There have been reports of the bag holding multiple pairs of shoes, water bottles and other smaller gym equipment. The price point is great for a bag of this size and quality without being overly cumbersome or complicated. It's an excellent balance between style and functionality.

Customers that are looking for a bag with at least two compartments will not find it with the Adidas Diablo. While the main compartment is big enough to suit most gym needs, some customers would have liked to see a small side compartment to carry keys, phones and other smaller items that might otherwise get lost in the shuffle. The bottom panel is moveable, so sometimes smaller items can get lost under there, but the workaround is fairly simple. Overall, the Diablo is a solid choice for any fitness fanatic.

Drawstring bags can be underrated when it comes to being used for gym bags. They're usually characterized as cheap, giveaway bags frequently passed out at conventions and big events. The HolyLuck Drawstring, however, is a step above.

Unlike cheap drawstring models, the HolyLuck is built to last from thick polyester that's easily cared for and strong as can be. The shoulder straps are just as sturdy and hang well on the back to give you relief from the sometimes cumbersome load of exercise equipment. The draw strong makes for quick opening and closing and is solidly secure; the straps turn out to be surprisingly strong yet comfortable. The zipper pocket on the back of the bag is a great option for added storage.

Though a relatively smaller brand, HolyLuck's Drawstring bag is a great value for the money. Customers were surprised by the comfortable material and the thick, strong drawstring cords. The material has a nice, high-quality feel to it, particularly when compared to the cheaper variety of drawstring bags.

There are a few drawbacks to the HolyLuck bag. While solid brass grommets secure the drawstrings at the bottom, no such reinforcement exists at the top of the bag, which might cause undue wear and tear later on in the bag's life. While the straps are generally considered comfortable, it may not be suitable for heavier loads and might cause them to dig into the shoulders a bit.

While not ideal for heavier loads, an average payload for going to the gym should fit nicely and comfortably in the HolyLuck Drawstring. Give it a try.

The Nike Brasilia Gym Sack is more than your average drawstring sack. Nike is a name rightly associated with quality, and its Brasilia Gym Sack is no exception to the rule. Most drawstring gym sacks are simply not built to last, but this Nike bag is ready for anything you can throw at it.

The bag is simple to use and fill, and it can hold a surprisingly large amount of gear. The bag is separated into three compartments for those who love their bag to be organized. Two of the compartments are located under the secure drawstring pull and the third is on the outside of the bag, sealed with a zipper.

The gym sack comes complete with a reinforced bottom to ensure it not only protects your gear from the scrapes and scuffs of everyday life, but it will last and last. The braided rope not only makes for a stronger drawstring than the average bag, but it adds to the comfort, too. Its compact design makes it an ideal choice for a quick trip to the gym, and it fits easily in lockers, cars, on public transportation, and much more.

Though the Brasilia Gym Sack has that extra compartment, it may not be ideal for those wishing to carry around water bottles or other gear that may be just a bit too big for one compartment or another. It may be too small for sports that are heavier on equipment, but for most sports, it definitely has a place on the shelf.

You can't go wrong with the classics, and the Adidas Defender III Duffel bag is everything a classic gym bag should be.

This gym bag is a great value for a well-known brand. It's bigger than the usual, run-of-the-mill small sized gym bags and will most certainly fit regular gym clothes, shoes and even a bit more. The dual zipper construction of each pocket means your things will stay organized and secure no matter what you throw at it. The reinforced design of the material is tear-resistant and built to last. The main compartment is not only roomy but a bit taller than average to allow that extra breathing room we all need sometimes. Its strong material and versatile nature make it a great choice not only for the gym but for vacations, overnight trips, and just as a general carry-all.

Some find the shoulder strap to be lacking a bit in the padding department. Others would like to see a more rigid bottom or perhaps a rigid insert for the bottom in future designs; some prefer the more flexible nature of the current design. The shoe compartment may not be suitable if you wear bigger shoes, but it can easily be adapted for use of your gym clothes instead. Some may be a bit bothered by the squeak of the metal in the shoulder straps, but perhaps a little bit of carefully applied WD-40 will clear that concern right up.

Though a bit pricier than some of the bags listed in this guide, the Adidas Defender III is a solid choice for anyone.

Water-resistant, made of tough material and sporting a clean, slick look, the MarsBro is a great choice for gym lovers everywhere.

This MarsBro bag features four compartments: a shoe compartment, a roomy main compartment, a front zipper pocket, and an interior security pocket. The built-in shoe compartment offers ample space for your shoes as well as security through exterior zippers and airy ventilation. It keeps your shoes separate and in a compartment with great airflow. The main compartment is perfect for gym clothes, towels, your shoes and other necessities for the gym. The front zipped pocket is a secure place to store your smaller items such as keys and your cell phone. The internal security pocket is good for your valuables as well, but it can also be utilized for your toiletries and if necessary, a mini-umbrella. The bag is capped off with an adjustable, comfortable shoulder strap.

Customers appreciate the compact size yet roomy nature of this MarsBro bag. Its more low-key design is appealing to those who want a bag that isn't covered with logos or comes in super-bright, flashy colors. The separate shoe compartment gets excellent reviews as most gym goers may not want the shoes mixed in with the rest of the gear.

The MarsBro bag may not be ideal for heavier gym loads as loading it up too heavy may cause tearing in the seams and undue wear and tear. Loading the bag too high can also cause issues as the zippers have been reported to tear over time. For a smaller gym bag that isn't going to encounter the elements too often, though, the MarsBro remains a solid option.

This gym bag can pack into itself when not in use! The WANDF foldeable duffle's standout feature is its portability, but it is a respectable choice for gym goers everywhere for other reasons as well.

The WANDF bag is rather roomy, even if it can shrink down to a small size to be carried elsewhere. It's made from a unique nylon blend that makes it water-resistant, lightweight and wearprooof. The high-quality metal zippers ensure this bag will stand the test of time, too.

This bag also features a water-resistant shoe compartment, comfortable padded handles and a comfortable shoulder strap for easy transportation. This compartment also works for laundry and swimwear, keeping them separate from the rest of the belongings in the bag.

While the folding process has a bit of a learning curve, customers appreciate the fact it can be easily folded up and stored when not in use. When unfolded, the bag itself is quite spacious. This may or may not be ideal for your needs, depending on how exactly the bag is going to be used. While some customers may not have enjoyed the lack of padding and inserts to give the bag shape, it stands to reason why the shape is so flexible; without that flexibility, folding simply wouldn't be possible.

While it is water-resistant, it should be noted this bag is not waterproof. As such, sometimes the rain can get in if the weather is bad enough.

Overall, if you're looking for a roomy bag that's easy to store at the same time, the WANDF is a great candidate.

With four compartments and two mesh pockets on the exterior, the DALIX Duffel is the perfect choice for the organized gym goer and traveler. This bag features a roomy, double-zippered main compartment, two zippered compartments on the side, one on the front. and two six-inch mesh pockets that would be perfect for water bottles. The comfortable shoulder strap is adjustable and reinforced with metal fasteners. The DALIX Duffel would be perfect not only for the gym, but for travel, hiking, and beyond!

Though not among the more widespread brand name, DALIX has proven itself as a competitive gym bag on the same level as Adidas, Under Armour, and Nike without the premium price. This particular model was created based on requests from the DALIX customer base, and the ability to take that feedback into consideration is always commendable.

The bag is roomy; even the side pockets can hold more than you might expect at first glance. It's not excessively bulky and should fit easily in to most of the spaces you'd expect. While the mesh pockets on the outside are not adjustable, they can still be quite handy to hold cell phones, water bottles and smaller items. Customers enjoy the organizational nature of the bag; keeping equipment separate from clothes and valuables in their own compartments is definitely a highlight for the DALIX bag.

While the small nature of the outside pocket presents a slight issue, overall, the DALIX bag is an excellent choice for a lower-than-premium price and certainly worth considering for those who are in the market for a solid, organizable gym or travel bag.

Durable, yet lightweight, the Kuston Sports Duffel Bag is a great choice for travel, the gym, and beyond. This bag features five separate compartments: A spacious main pocket, an inner zip pocket for wallet, keys and your cell phone, one for your shoes, a front pocket, and a waterproof zipper pocket for wet clothes behind the bag. The Kuston Sports Duffel is also ventilated to allow for unpleasant after-workout odors to escape, leaving your equipment and clothing feeling fresh.

The comfortable shoulder strap is detachable for those who prefer to use the handles. The strap is designed with your back in mind, making it easy on your aching muscles when you leave the gym for the day. The durable cloth material, both sleek-looking and functional, is further reinforced with high-quality metal fasteners that hold everything together.

Much like any quality gym bag, the Kuston models are roomier than they initially appear, and even large-sized men's shoes have no issue fitting in the bag with room to spare for equipment, toiletries, and clothing.

Some customers found the Kuston bags just a bit big for storing comfortably in some smaller gym lockers, and the texture of the waterproof compartment tends to be a little sticky. Some found the shoe compartment to be difficult to navigate as packing it too full does not leave a lot of room in the main compartment for the necessities. In general, if you're going to the gym on the regular basis and have a tendency to pack fairly light, this would be an excellent choice for you.

The Speedo Deluxe Ventilator Mesh Back is designed to be a swimmer's bag, but it can be just as easily used for the everyday gym, too. The generous amount of room, airy ventilation, and lightweight design makes it a viable multi-purpose candidate.

The open weave mesh is suprisingly strong and airy for when your gym clothes and shoes need to air out. If you're a swimmer, the bag is even better since it's a good way to help dry your gear for the trip home. The front, zippered pocket is perfect for smaller valuables and equipment like goggles, glasses, earbuds, and more.

The standard shoulder straps aren't your usual drawstring material but rather their own entity, like something you would find on a standard backpack or gym bag. This is great for added comfort. The drawstring closure is tight and secure and the pack also comes with a handy hanging loop between the shoulder straps.

While the size may not make it great for huge loads of equipment, for the most part, it would suit the needs of gym and pool goers just bringing the standard equipment. Speedo is tougher than most standard mesh backpacks and the added securty of an opaque zipper pocket is a great bonus for anybody.

Some customers would have prefered having some padding on the back of the bag for added comfort and shape, but others prefer the bag's flexibility for ease of storage. While it is lightweight and easily stored, the Speedo Deluxe Ventilator Mesh Back should absolutely not be counted out when it comes to ideal gym drawstring bags. It's certainly worth the money and your time.