Last Updated on August 1, 2026 by Tyler Morgan
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Choosing a carry-on backpack is mostly a question of tradeoffs: you need enough room for a short trip, but you do not want a heavy bag that becomes uncomfortable before you reach the gate. The Rcrirth Carry On Travel Backpack, model Sb-122, combines a suitcase-style opening, expandable storage, a laptop compartment, and a light 2-pound build. It is a practical option for weekend travel and business trips, although the listing gives mixed 35L and 40L capacity figures, and airline fit always depends on the carrier. This review explains where the bag works well, where its limits matter, and what to check before ordering.
Quick Verdict
Rating: 8/10, recommended with caveats
Best For: Weekend travelers, business travelers, and light packers who want a suitcase-style backpack with room for a large laptop.
Bottom Line: The Rcrirth Sb-122 offers useful organization, a 180-degree opening, and expandable storage in a relatively light package. Its main tradeoffs are the conflicting capacity labels, limited published warranty information, and the need to confirm airline size rules before every trip.
| Specification | Detail |
|---|---|
| Brand | Rcrirth |
| Model | Sb-122 |
| Product type | Expandable carry-on laptop backpack |
| Selected size | 35L |
| Listed storage volume | 40 liters in Amazon product details, which conflicts with the 35L size label |
| Dimensions | 9 x 12 x 18 inches |
| Weight | 2 pounds |
| Outer material | Polyester |
| Lining | Terylene |
| Weather protection | Water-resistant construction; seller also describes waterproof compartments |
| Laptop compatibility | Up to 17.3 inches |
| Organization | 7 pockets and 7 compartments listed |
| Opening | 180-degree suitcase-style opening |
| Available colors | Black and pink |
| Package quantity | 1 backpack |
What Is the Rcrirth Carry On Travel Backpack?
The Rcrirth Sb-122 is a rectangular, soft-shell travel backpack made for adults who want to carry clothing, a laptop, and smaller travel items in one bag. Its 9 x 12 x 18-inch body is designed around common carry-on proportions, while the full-opening main compartment lets you pack it more like a small suitcase than a school backpack.
The selected variant is labeled 35L, but Amazon’s product-detail table lists a 40-liter storage volume. The expansion zipper adds about 2 inches of depth, which likely explains part of that difference, but the listing does not clearly separate standard and expanded capacity. Treat it as a 35L-class backpack and check the current listing details before you buy.
Who Should Buy It?
Best For
- Weekend and short-trip travelers who pack light.
- Business travelers carrying a laptop up to 17.3 inches.
- Travelers who prefer a backpack that opens and packs like a suitcase.
Skip If
- You need a guaranteed personal-item bag for a strict budget airline.
- You want a hiking-style suspension system with a structured hip belt.
- You require clearly published long-term warranty coverage.
Detailed Features
Expandable Capacity and Suitcase-Style Packing
The expansion zipper increases the backpack’s depth by about 2 inches. That extra room is useful when you bring home souvenirs, add a second pair of shoes, or need space for a jacket. The tradeoff is that an expanded bag may exceed a carrier’s permitted depth, so you should measure it after packing rather than relying only on the unfilled dimensions.
The main compartment opens flat to 180 degrees. This layout makes folded clothing easier to arrange and gives you a clear view of the contents. It also helps at airport screening when you need to reach electronics or documents without digging through a narrow top opening.
Laptop Storage and Organization
The dedicated laptop area supports devices up to 17.3 inches, which is larger than the 15.6-inch limit found on many travel backpacks. The listing also identifies seven pockets and seven compartments, including a private rear pocket intended for a passport, cash, or other small valuables.
That organization is useful for separating chargers, toiletries, documents, and clothing. Still, a large laptop plus dense packing can make a 2-pound bag heavy quickly. Keep your heaviest items close to your back and avoid filling every pocket simply because space is available.
Materials and Weather Resistance
The exterior is polyester with a terylene lining and soft-shell construction. Amazon classifies the bag as water resistant, while the seller describes some compartments as waterproof. The safer expectation is protection from light rain and small spills, not complete protection during prolonged rain or submersion.
For electronics or travel documents, use an internal waterproof pouch when rain is likely. The soft shell can compress more easily than hard luggage, but it also offers less impact protection for fragile items.
Carry Design and Everyday Use
At 2 pounds when empty, the Sb-122 is light for its stated capacity. It uses a shoulder-harness design and double handles, so you can wear it as a backpack or lift it like luggage. Its simple black or pink exterior also works for business travel, commuting, and casual weekend use.
The listing does not provide detailed information about torso sizing, hip-belt support, or load-lifter straps. For long walks through large airports, a lightly packed load will be more comfortable than a tightly packed 35L to 40L load.
Before You Buy: The 18 x 12 x 9-inch dimensions can work as carry-on luggage on many airlines, but they do not guarantee under-seat or personal-item approval. Expansion adds depth, and every airline sets its own limits.
How It Performs in Real Use
For Weekend Trips
The bag’s 35L-class size is well suited to a few outfits, basic toiletries, a laptop, and travel accessories. Packing cubes can keep the suitcase-style compartment organized and reduce the chance of clothing shifting when you wear the bag vertically.
For Business Travel
The 17.3-inch laptop capacity, rear valuables pocket, and clean rectangular shape make it practical for work trips. It can reduce the need for a separate laptop bag, although placing a large computer beside tightly packed clothing may increase pressure on the device. Use a padded sleeve if your laptop needs extra protection.
At Airport Security
The 180-degree opening makes the contents easier to access, but it should not be treated as an official TSA approval or a promise that your laptop can stay inside the bag. Screening rules and officer instructions still apply. Pack electronics where you can remove them quickly.
For Daily Carry
With the expansion zipper closed, the bag can function as a large commuter backpack. Its 2-pound empty weight is manageable, but the 18-inch height and wide main compartment may feel bulky for a short commute or a small frame. A compact daypack will be better when you only need a laptop and a few daily essentials.
Packing and Usage Tips
- Check the packed size: Measure all three dimensions after loading the bag, especially when the expansion zipper is open.
- Balance the load: Place your laptop and other dense items against the back panel, with lighter clothing farther away.
- Protect liquids: Put toiletries in a sealed pouch even when using a water-resistant compartment.
- Keep documents accessible: Use the rear pocket for items you need at check-in, but do not leave valuables in an unattended bag.
- Leave expansion for the return trip: Starting with the zipper closed gives you spare room without making the outbound bag larger than necessary.
Pro Tip: Before your first flight, pack the bag fully and place it in a cardboard outline matching your airline’s size limit. This catches bulging pockets and overfilled corners that a tape measure can miss.
Cleaning and Maintenance
For routine care, empty every compartment and shake out loose dirt. Wipe the polyester exterior with a damp cloth and a small amount of mild detergent, then wipe away soap residue. Use a soft brush only on stubborn surface marks.
Let the backpack air dry completely with the zippers open. Avoid storing it while damp, and do not assume it is machine washable unless the current care label specifically allows it. Check the seams, shoulder straps, handles, and expansion zipper before each major trip.
Pros and Cons
Pros
- Light 2-pound empty weight for a 35L-class travel bag.
- 180-degree opening supports suitcase-style packing.
- Expansion zipper adds about 2 inches of extra depth.
- Fits laptops up to 17.3 inches.
- Seven listed pockets and compartments improve organization.
Cons
- The listing conflicts between a 35L size and 40-liter storage volume.
- Under-seat fit is not guaranteed, especially when expanded.
- Published warranty terms are not clearly stated on the product page.
Is It Worth the Price?
The Rcrirth Sb-122 makes the most sense as a value-focused travel backpack for buyers who care about low empty weight, large-laptop storage, and a suitcase-style layout. It provides more travel-specific organization than a basic school backpack without moving into the price range of premium one-bag travel packs.
Its value is less convincing when warranty support, a technical harness, or precisely documented capacity matters more than price. Check the current seller, return terms, capacity description, and color before ordering because marketplace details can change.
How It Compares to Alternatives
Similar bags such as the Vancropak 35L and tomtoc 40L are worth comparing when you want a different pocket layout, carry system, or warranty presentation. The Cotopaxi Allpa 35L sits in a more premium category and may appeal to travelers who place greater value on a structured carry design and clearly documented materials.
The Rcrirth stands out mainly for its 2-pound weight, 17.3-inch laptop fit, and expandable suitcase-style shape. It is the stronger value choice when those features matter more than premium materials or a more advanced suspension system.
Frequently Asked Questions
Is the Rcrirth backpack 35L or 40L?
The selected size is labeled 35L, while Amazon’s product details list a 40-liter storage volume. Because the expansion zipper adds about 2 inches of depth, the larger number may refer to expanded capacity, but the listing does not explain this clearly.
Will it fit under an airplane seat?
It measures 9 x 12 x 18 inches before accounting for bulging pockets or expansion. That may fit some airline personal-item limits, but many carriers allow less depth, so you must compare the packed bag with your airline’s current rules.
What laptop size does it hold?
The listing states compatibility with laptops up to 17.3 inches. Measure your device with its protective sleeve because thick cases can affect fit.
Is the backpack waterproof?
Amazon classifies the backpack as water resistant, although the seller describes waterproof compartments. Plan on protection from light rain and small splashes, and use a sealed pouch for electronics or documents in wet conditions.
Does it have a warranty?
The Amazon page links to a warranty-information request but does not state a specific warranty term. Do not assume a one-year warranty; check the current seller’s warranty and return details before purchasing.
Which colors are available?
The listing shows black and pink variants in the 35L size. Confirm the selected color and ASIN in your cart because availability can vary.
Is it suitable for international travel?
It can work well for international trips when you pack light and the 18 x 12 x 9-inch size fits your carrier’s rules. Check every airline on your itinerary, including regional connections, because carry-on limits can differ.
How should you clean it?
Spot-clean the polyester exterior with a damp cloth and mild detergent, then air dry it with every compartment open. Follow the sewn-in care label and avoid machine washing unless the manufacturer specifically permits it.
The Bottom Line
The Rcrirth Sb-122 is a sensible choice for weekend travelers and business travelers who want an expandable, suitcase-style backpack with space for a 17.3-inch laptop. Skip it if you need guaranteed personal-item sizing, a technical hiking harness, or clearly stated long-term warranty coverage. Its main strength is useful travel organization at a low 2-pound empty weight, while its biggest limitation is the unclear 35L versus 40L capacity description.
