Under Armour Undeniable 5.0 Small Duffle bag, midnight navy
Under Armour Undeniable 5.0 Small Duffle bag, midnight navy
Under Armour Undeniable 5.0 Small Duffle Bag – Midnight Navy
The Under Armour Undeniable 5.0 Small Duffle Bag is a versatile sports bag in midnight navy, equally at home on your commute to the gym or packed for a weekend trip. Part of the long-running UA Undeniable series, this is a tried-and-tested design brought back in an improved iteration — lightweight yet built from exceptionally durable materials for long-lasting everyday use. The bag is finished with UA Storm water-repellent coating to keep your gear dry whatever the weather throws at you.
Key Features
- UA Storm technology — highly water-repellent surface treatment that resists the elements
- Reinforced base and side panels — firm, foam-padded bottom with durable TPU side panels for added protection
- Large vented pocket — dedicated ventilated compartment for laundry or shoes, plus internal organisation pockets for small items
- Molle webbing straps — external attachment straps and a large front zip pocket for extra storage
- Dual water bottle pocket — keeps your hydration within easy reach on both sides
- Adjustable shoulder strap — comfortable carry option for hands-free transport
Technology in Detail
UA Storm Water-Repellent Finish
UA Storm is Under Armour's proprietary DWR (Durable Water Repellent) surface treatment applied directly to the fabric. It causes water to bead up and roll off the surface rather than soaking in, keeping the contents of your bag dry during light rain or wet conditions. Unlike a fully waterproof coating, UA Storm is designed to remain breathable and flexible while offering strong resistance against moisture. It also helps the bag resist dirt and staining over time, maintaining its appearance even with heavy daily use.
Reinforced TPU Base and Side Panels
The base of the Undeniable 5.0 is constructed with a firm, foam-padded foundation that protects your belongings from impact and keeps the bag's shape when set down. The side panels are reinforced with TPU (thermoplastic polyurethane) overlays, a material known for its exceptional abrasion resistance and flexibility. Together, these structural reinforcements ensure the bag can withstand the wear and tear of daily gym sessions, travel, and outdoor activities without showing premature signs of damage.
Molle Webbing and External Storage
The exterior of the bag features Molle-compatible webbing straps, a system originally developed for military applications, allowing you to attach additional pouches, accessories, or gear clips for expanded carrying capacity. A large front zip pocket provides quick-access external storage for items you need to reach without opening the main compartment — perfect for keys, a phone, a wallet, or a small towel. This combination of Molle webbing and the front pocket makes the Undeniable 5.0 a highly adaptable bag for athletes who carry a varied kit.
Vented Laundry and Shoe Pocket
A dedicated large vented pocket allows air circulation to prevent odour build-up from used clothing or worn footwear — an essential feature for gym-goers and travellers alike. Keeping sweaty kit separated from clean gear helps maintain hygiene and makes post-workout organisation straightforward. Additional internal organisation pockets offer separate compartments for smaller essentials such as earphones, chargers, or toiletries, so everything in your bag has its own place and remains easy to find.
Dual Water Bottle Pocket
Staying hydrated during training or travel is made easy by the dual water bottle pocket, which can accommodate bottles on both sides of the bag. This design means you can carry two bottles simultaneously — one for water and one for a sports drink, for example — or simply use one side and keep the other free. The pockets are sized to hold standard sports bottles securely, preventing them from slipping out during transit.
Adjustable Shoulder Strap
The included adjustable shoulder strap lets you carry the Undeniable 5.0 comfortably over one shoulder or across the body, depending on the load and your preference. The strap length can be quickly dialled in to suit different body sizes and carrying positions, making the bag equally comfortable for shorter journeys and longer commutes. Combined with the top carry handles, you have two distinct carrying options for maximum flexibility.
Specifications
| Specification | Details |
|---|---|
| Dimensions | 55 × 27 × 26 cm |
| Capacity | 40 L |
| Material | 100% polyester |
| Colour | Midnight navy |
| Bag type | Sports duffle bag |
| Water resistance | UA Storm DWR coating |
| Base construction | Foam-padded with TPU side panels |
| Carry options | Top handles + adjustable shoulder strap |
| External pockets | Large front zip pocket, dual water bottle pockets, Molle webbing |
| Internal pockets | Large vented pocket + small organisation pockets |
We'd love to hear your opinion
Your review will help us and other customers when buying this product.



































