8 Best Travel Side Bags to Buy in 2025

If security is non-negotiable when you’re navigating busy cities or unfamiliar destinations, the Travelon Anti-Theft Classic Messenger Bag doesn’t just deliver—it dominates. This isn’t just a side bag; it’s a mobile fortress with a 5-point anti-theft system, including slash-resistant mesh lining across all four sides and the base, a cut-proof strap, and RFID-blocking pockets that shield your credit cards and passport from digital theft. The locking zippers and angled flap design make quick access for you but near-impossible for pickpockets, solving the core anxiety of urban travelers and digital nomads alike.

In real-world testing, the bag proves its mettle on crowded subways, bustling markets, and airport terminals. Measuring 9″W x 12.5″H, it offers ample space without drawing attention—perfect for carrying a tablet, power bank, wallet, and travel documents. The adjustable strap (18″–30″ drop) ensures a snug, cross-body fit that deters grab-and-run attempts, while the side water bottle pockets add practicality. However, the rigid structure and slightly boxy shape can make it feel bulky under tight spaces like airplane seats, and the lack of padding in the main compartment may leave delicate electronics vulnerable without extra protection.

Compared to minimalist sling bags like the higouta Mini Sling, the Travelon trades compactness for unmatched protection, positioning itself as the go-to for high-risk environments. It’s ideal for international travelers, festival-goers, or city commuters who prioritize safety over sleek aesthetics. While it’s heavier at 1.1 lbs, that weight comes with peace of mind you won’t find in budget models—offering a level of defense that justifies its premium over simpler designs like the Pritent or WATERFLY bags.

Don’t let the ultra-affordable price tag fool you—the Pritent Crossbody Bag punches far above its weight with thoughtful design and rugged functionality. Built with thick, abrasion-resistant fabric and a fully waterproof exterior, this bag laughs in the face of rainstorms and rough trails, making it a standout for budget-conscious adventurers. The multi-pocket layout—including two front zip pockets, a buckle pocket, four internal open pockets, and a side mesh stash—means you’ll never dig endlessly for your keys or power bank again. Plus, the convertible strap system with D-rings on both sides lets you switch shoulders effortlessly, reducing fatigue on long hikes or city walks.

During real-world use, the Pritent shines in outdoor and urban settings alike. At 7.5″ x 3.5″ x 14.5″, it offers generous vertical storage—ideal for slipping in an iPad, sunscreen, snacks, and a small umbrella. The breathable mesh back panel keeps sweat at bay, and the reflective strips on the strap add a smart safety touch for night walks or roadside cycling. However, the lack of any anti-theft features like locking zippers or RFID protection leaves it vulnerable in high-crime areas, and the main compartment’s open design offers minimal organization for smaller items.

When stacked against the Travelon or G4Free models, the Pritent sacrifices security for raw value and versatility, making it best suited for low-risk environments or casual use. It’s a perfect pick for students, weekend hikers, or travelers who want a do-it-all bag without breaking the bank. While it doesn’t match the tech-forward features of the SEAFEW USB bag or the premium feel of BOSTANTEN’s leather model, it delivers more functionality per dollar than nearly any other sling in the lineup.

When outdoor versatility meets iconic brand reliability, the THE NORTH FACE Jester Crossbody Bag delivers a rugged yet refined experience built for movement. Its signature front bungee system isn’t just for show—it’s a game-changer for securing jackets, helmets, or souvenirs on the fly, turning this 2.3-liter sling into a dynamic companion for hiking, biking, or urban exploration. The DWR (Durable Water-Repellent) finish shrugs off drizzle and trailside splashes, while the multi-carry design lets you wear it crossbody, over-the-shoulder, or even as a waist pack—adapting to your activity in seconds.

In testing, the Jester proved its worth on mountain trails and city commutes alike. The 6″ x 2.5″ x 8.13″ footprint keeps it nimble, while the internal drop-in pocket and zippered back compartment offer smart storage for phones, snacks, or gloves. The strap adjusts from 27″ to 50″, ensuring a secure fit for all body types, and the lightweight 5 oz build means it disappears on your back. But the small volume limits bulkier gear—don’t expect to fit a large water bottle or full-sized tablet—and the minimal padding offers little protection for fragile items.

Compared to the G4Free or SEAFEW models, the Jester prioritizes mobility over tech or security, making it ideal for active users who want a single bag for trailheads, concerts, or quick errands. It’s less about digital protection or charging ports and more about rugged, no-fuss durability—a true outdoor workhorse. While it lacks the USB port of the SEAFEW or the RFID shielding of the G4Free, its brand-tested resilience and bungee utility make it a top pick for adventurers who value function over features.

For travelers who treat digital safety as seriously as physical security, the G4Free Sling Bag is a quiet powerhouse with a hidden RFID-blocking pocket that shields your cards and phone from wireless skimming in airports, cafes, or transit hubs. This isn’t just a gimmick—the 7.5″ x 8″ shielded compartment is seamlessly integrated into the back panel, making it both discreet and highly effective. Combined with its reversible, switchable strap design, breathable back pad, and water-resistant polyester construction, this bag blends protection with comfort for all-day wear.

With a 12oz weight and three main compartments, it strikes a smart balance between minimalism and utility. The central zippered section includes pen slots, a keychain, and two extra pouches—ideal for organizing travel essentials without clutter. It fits devices up to 11 inches, making it compatible with most iPads, and the strap phone pocket (3.3″ x 6.5″) keeps your device accessible. However, the lack of external quick-access pockets means digging for small items, and the modest 27″–46.5″ strap range may feel tight for taller users or those wearing bulky coats.

Against the Travelon, the G4Free matches its security focus but in a lighter, more streamlined form—perfect for tech-savvy commuters or digital nomads who want RFID protection without the bulk. It’s less about slash resistance and more about invisible defense, positioning itself between the Pritent’s budget build and the Travelon’s fortress-like design. While it doesn’t offer the USB charging of the SEAFEW, it delivers smarter data protection than any other bag under $30—a must-have for privacy-conscious travelers.

The SEAFEW sling bag redefines convenience with its standout USB charging port, turning it into a mobile power hub for travelers who refuse to let their phone die mid-journey. By connecting your power bank inside the main compartment to the built-in USB port, you can charge your phone on the go—perfect for long walks, bike rides, or delayed flights. Crafted from high-quality, waterproof nylon, the bag is both lightweight (0.77 lbs) and tough, resisting dirt and rain while staying easy to clean with just a wipe. The mesh back panel and padded strap ensure breathability and comfort, even during extended wear.

At 11.8″ x 8.7″ x 3.9″, it offers surprising capacity without bulk, fitting essentials like a wallet, phone, keys, and a small power bank. The front zippered pocket keeps frequently used items within reach, and the overall design is sleek enough for city wear or outdoor adventures. However, the lack of RFID protection leaves digital data exposed, and the single main compartment can become disorganized without internal dividers. While the USB port is a major win, it’s only as useful as the power bank you carry—so forgetting it renders the feature moot.

Compared to the G4Free or BOSTANTEN models, the SEAFEW stands out not for style or security, but for real-time functionality. It’s the ideal pick for tech-dependent users—students, urban cyclists, or digital travelers—who need constant connectivity. While it doesn’t match the luxury feel of the BOSTANTEN leather bag, it delivers more innovation than any other budget-friendly model, blending utility with modern convenience in a way few slings can.

Style and substance converge in the BOSTANTEN Small Sling Bag, where premium PU leather and a minimalist silhouette create a fashion-forward accessory that doesn’t skimp on function. Unlike rugged nylon bags, this one turns heads with its soft, elegant texture and neutral beige tone—effortlessly pairing with casual jeans or a summer dress. But it’s not just a pretty face: the 5-pocket layout and RFID-blocking card slots keep essentials secure and organized, while the adjustable strap (25″–48″) ensures a custom fit whether worn crossbody or over one shoulder.

Measuring 10.24″ x 6.69″ x 3.15″, it offers just enough room for a phone, wallet, keys, lipstick, and a small cosmetic pouch—ideal for light travelers or city strollers who want to travel hands-free without bulk. The water-resistant material adds peace of mind on drizzly days, and the detachable strap allows for clutch-style use when needed. However, the leather-like material may not hold up as well to heavy outdoor use or extreme weather, and the lack of a dedicated tech pocket makes it less ideal for gadget-heavy users.

Compared to the higouta or Pritent models, the BOSTANTEN trades ruggedness for refined elegance, making it best for fashion-conscious women who value aesthetics as much as utility. It’s perfect for dates, shopping trips, or weekend getaways where looking put-together matters. While it doesn’t offer the outdoor durability of The North Face Jester, it delivers a level of sophistication no other bag in this list matches—proving that style and smart design can coexist in one compact package.

When ultra-lightweight design meets rugged practicality, the higouta Mini Sling Bag emerges as the ultimate minimalist companion for fast-moving travelers and fitness enthusiasts. Weighing next to nothing and measuring just 5.3″ x 1.2″ x 8.1″, this featherlight 1L bag disappears against your body while still holding essentials like a phone, wallet, cards, and passport—perfect for theme parks, gym sessions, or crowded festivals where bulk is a liability. The 500D heavy-duty nylon is impressively water-resistant, and the breathable mesh back panel keeps you cool even during intense activity.

The real magic lies in its 3-in-1 versatility: wear it crossbody for travel, as a fanny pack for the gym, or flipped around as a mini backpack for hiking. The 2.5″-wide ergonomic strap stays comfortable under layers, and reflective stripes add visibility at night—smart touches for safety-conscious users. However, the tiny capacity means it’s not suitable for longer trips or tech-heavy loads, and the lack of internal organization can make finding small items a hassle.

Against the SEAFEW or WATERFLY models, the higouta wins on pure portability and discretion, ideal for those who want only the bare essentials on hand. It’s less about charging ports or RFID protection and more about staying agile and unencumbered. While it doesn’t offer the storage depth of the Pritent, it delivers the lightest, most flexible carry option in the lineup—perfect for runners, festival-goers, or anyone who values speed and simplicity over features.

The WATERFLY Crossbody Sling Bag earns its title as the most adaptable strap system in the category, thanks to its 3-D-ring design that lets you instantly switch the strap from left to right shoulder—ideal for changing comfort or security needs on the go. The adjustable strap (31″–39.5″) fits a wide range of body types, and the shoulder strap pouch (3.5″ x 7.5″) is perfect for storing a phone up to 7 inches, keeping it secure yet accessible. Combined with a hidden earphone hole and breathable back material, this bag is built for users who want seamless, tech-friendly mobility.

At 7″ x 3.5″ x 15″, it offers vertical storage that fits an iPad mini, power bank, keys, and small toiletries, while the front zip and buckle pockets keep frequently used items within reach. The side mesh pocket fits a standard water bottle, adding practicality for day hikes or city walks. However, the strap length maxes out at 39.5″, which may be too short for taller users or those wearing thick winter coats, and the lack of anti-theft features like locking zippers or RFID blocking limits its appeal in high-risk areas.

Compared to the G4Free or Travelon, the WATERFLY focuses less on security and more on user-centric adjustability and comfort. It’s ideal for commuters, students, or weekend travelers who prioritize easy access and wearability over digital protection. While it doesn’t match the charging capability of the SEAFEW, it delivers the smoothest strap customization in its class—making it a top contender for anyone who values effortless switching and all-day comfort.