10 Best Gym Bags 2025 in the United States

The BAGSMART Gym Bag for Women is a stylish and functional option for anyone seeking a versatile gym or travel bag. With dimensions of 16.5×7.5×11.8 inches, it offers a large capacity, making it easy to pack all your essentials for the gym, weekend trips, or even an overnight stay. The multiple compartments, including a dedicated PVC pocket for wet items, help keep your belongings organized and ensure that you don’t mix clean and wet gear.

One of the standout features is its portability. Designed to fit under an airplane seat, this bag is perfect for travelers, as it can also slide onto your suitcase handle for convenience at the airport. The adjustable strap gives you options for carrying, whether you prefer the regular handles or need to sling it across your body.

In terms of material, the bag is made from soft and durable Taslon fabric, which feels good to carry and enhances its longevity due to sturdy zippers and stitching. This durability is a plus for those who regularly use their gym bag. While the bag excels in many areas, its size may be a bit on the smaller side for longer trips or for those who like to carry a lot of gear. Additionally, the design might not appeal to everyone, particularly if you prefer a more understated look.

The Under Armour Undeniable 5.0 Duffel bag is a solid choice for gym-goers looking for a compact yet durable option. Its water-repellent fabric and reinforced bottom and side panels mean it can handle rough treatment and protect your gear from moisture. The bag has a ventilated pocket that’s perfect for separating sweaty clothes or shoes from the rest of your items, helping keep everything fresh. It also offers multiple compartments including internal slip pockets and a large front zippered pocket, which helps with organizing smaller items like keys or gym cards. The dual water bottle pockets on the outside are a practical touch to keep you hydrated.

The bag being labeled as small suggests it’s best for light to moderate gym loads rather than carrying bulky equipment. The presence of molle webbing points adds some versatility for attaching extra gear. Style-wise, the serpentine and blue colors give it a sporty look typical of Under Armour.

This bag is well-suited for someone needing a durable, water-resistant, and well-organized small gym bag, but those wanting more carrying comfort or larger capacity might want to explore other options.

The Under Armour Undeniable 5.0 Duffle in Medium is a solid choice for gym-goers needing a reliable, versatile bag. Measuring 12.1"W x 11.4"H x 24.6"L with a 58L volume, it offers plenty of space for workout clothes, shoes, and extras without being too bulky. It has multiple compartments, including a large front zippered pocket and internal slip pockets, which help keep your gear organized. A dedicated vented pocket is great for storing sweaty shoes or laundry, which keeps odors separated from clean items.

The bag’s material is 100% polyester with a tough TPU-coated and foam-lined bottom and sides, making it durable and able to hold its shape even with heavy use. It comes with a padded, removable HeatGear shoulder strap and a padded top handle, both comfortable for carrying. Ventilation is thoughtfully addressed through the ventilated shoe pocket, though the main compartments don’t have extra airflow. The style is sporty and understated in pitch gray with black accents, fitting most tastes without standing out too much.

One potential downside is that while it’s robust, the polyester material isn’t waterproof, so it may not protect your items fully in heavy rain. Also, for those who prefer ultra-light bags, this model is on the sturdier, moderately heavy side. This bag is suited for gym users looking for durability, good organization, and decent ventilation in a medium-sized, stylish package.