Everyone knows the problems a single travel pack brings. If you get one that will work for an epic around-the-world adventure, it’s too big for the 3-to-5 day trips you take most of the time. If you get a smaller bag, you’re stuck with not enough space if you pick up things along the way. And, the one bag has only one mode of carry, and has to double as both a carry-everything pack on the plane (where it may not meet carry-on requirements if it’s too big) and at your destination, where you’d really like to be able to explore with a lighter weight daypack. Modular bag systems try to address these problems; however, most modular bags optimize for the combined state and treat separation as an afterthought. You could get a brilliant 65-liter travel beast that zips apart into a couple of mediocre bags you would never choose to carry on their own.

Enter Onli Travel’s Modevo Modular Travel Pack: a unique three-bag system, composed of the Core Pack travel backpack at the rear, the Link (an expandable shoulder bag/brief) in the middle, and the expandable Go Daypack on the front. Modevo takes the opposite approach, designing each of it’s three components as a fully functional standalone bag first, then engineering the connection points to make the combined configurations work without compromising the individual pieces. The Core Pack needs to work as a real 28-liter travel backpack with proper suspension. The Link needs to function as a usable briefcase or messenger bag. The Go Daypack needs to stand on its own for day trips or quick errands. Only after those requirements get satisfied in an appealing way does the design consider how they zip together.

Designer: Onli Travel

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This philosophy shows up in details like the Core Pack’s suspension system, which includes load lifters, a padded and vented back panel, and a removable hip belt that actually transfers weight to your hips rather than acting as decorative webbing. The Link has retractable handles and a shoulder strap with quick-release buckles, making it genuinely useful as a standalone carry for laptops and documents, or when you need extra space. The Go Daypack expands from 12 to 27 liters and includes a luggage pass-through strap, giving it real utility beyond just being the third piece of a modular system. When you zip all three together, you get a 58 to 73-liter travel system that works great as a unitary backpack, but the crucial bit is that you can separate them mid-trip and actually want to use the individual components.

At 28 liters, the Core Pack sits in that sweet spot where you can carry a week’s worth of clothes plus a laptop without the bag feeling oversized for daily use. The clamshell opening makes packing straightforward, and the dedicated laptop pocket fits screens up to 17 inches. Onli included compression straps on the sides that do double duty securing tall items such as tripods or walking sticks in the side pockets, along with a hidden pocket on the back panel for passports or valuables. The suspension system uses contoured shoulder straps with enough padding to handle weight comfortably, and the removable hip belt actually does something useful when you load the pack heavy, and has vertical adjustment to fit your torso. Side stretch pockets accommodate water bottles or umbrellas without eating into the main compartment space. The vented back panel helps with airflow, which matters when you are wearing the pack for extended periods or in warm climates. Discreet cord loops allow you to add on extra items if needed.

The 18-liter Link zips onto the front of the Core Pack when you need extra space or organization, but it works independently as a briefcase, shoulder bag, or crossbody carry. Retractable handles let you grab it like a briefcase when you are heading into a meeting, and the adjustable shoulder strap with quick-release buckles converts it into a messenger bag for commuting. Inside, there is an internal laptop sleeve that runs the length of the bag to handle over size laptops, a quick-stash front pocket for things you need to grab frequently, and enough room for documents, chargers, and the other miscellaneous items that usually end up loose in the bottom of a backpack. The design is clean enough that you could carry it into a professional setting without looking like you are lugging around camping gear. When attached to the Core Pack, it acts as a front organizer panel with easy access to essentials without needing to open the main compartment.

The Go Daypack adds 12 to 27 liters depending on whether you expand it, and it zips onto the front of the Core Pack or the Link (yes, you can configure it both ways depending on the needs of your trip!) to create the full travel configuration. On its own, it functions as a compact daypack with top-loading laptop access, dual front organizer pockets, and a grab handle for quick carry. The expandable design means you can keep it compressed for light days and open it up when you need to haul groceries or souvenirs back from a market. A pass-through strap on the back lets you slide it onto rolling luggage handles, which is genuinely useful when you are navigating airports and want to consolidate your carry. The expansion zipper runs around the perimeter, adding 15 liters of capacity when you need it without making the bag look bloated when compressed.

Put all three together and you get a system that adapts to your journey, and gives you the flexible capacity and carrying options that make travel fun. . The combined configuration reaches 58 liters unexpanded or 73 liters when you open up the Go Daypack’s expansion zipper, giving you enough capacity for extended trips without needing to check a bag. The attachment system uses YKK zippers running around the perimeter of each bag, creating a mechanical connection that distributes load across the entire interface instead of relying on clips or straps that create stress points. When you want to separate the bags mid-trip, you just unzip the connections and each piece comes away ready to use independently.

Onli Travel has been refining this concept since 2018 across multiple product iterations. This is their fourth campaign, and the design language suggests they have learned from previous versions. The bags use water-resistant fabric with Bluesign and OEKO-TEX certifications, which means the materials meet environmental and safety standards for manufacturing. YKK zippers and hardware throughout indicate attention to durability, and the construction quality reflects years of user feedback from earlier models. The system also works as a two-bag setup if you skip the Link and pair the Core Pack directly with the Go Daypack (a feature only Onli Travel offers). This “Duo configuration” pairs the Core Pack with the Go Daypack, gives you 40 to 55 liters of capacity and covers most travel scenarios without the additional briefcase component. This makes sense if your trips tend to be shorter or more casual or if you already have a dedicated work bag you prefer.

For people who want overflow capacity without committing to the full three-bag system, Onli also offers the Penta 5-in-1 packable duffel separately. It functions as a duffel, backpack, shoulder bag, belt bag, or crossbody, and it packs down small enough to stuff into the Core Pack until you need the extra space. The Penta works particularly well for those unexpected situations where you buy more than you planned or need a separate bag for dirty laundry or beach gear. It adds 27 liters of capacity when deployed but weighs almost nothing and takes up minimal space when packed.

The Modevo Trio is available now for $224 through the pre-order window, with the Duo configuration running $174, if you skip the Link. Adding the Penta duffel to the Duo brings the total to $249, while the full Trio plus Penta bundle sits at $299. Colors come in black or teal, with selection happening after the campaign closes. Delivery is scheduled for June 2026, with domestic and international shipping available.

Click Here to Buy Now: $174 $259 ($85 off). Hurry, only 5/20 left! Raised over $45,000.

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