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You are deciding between the cotopaxi allpa 42l travel pack vs allpa 28l travel pack. Both packs share key organizational features, including a full-wrap zipper opening, similar internal pocket layouts, and padded laptop sleeves. The primary difference lies in their capacity and physical dimensions. The 42L model offers significantly more volume for extended trips, while the 28L version is more compact and lighter. Your choice depends on how much gear you need to carry and your preference for bag size.
Capacity
42L
28L
Dimensions
22x14x11 inches
19x12x9 inches
Weight
3.09 pounds
2.25 pounds
Special Features
Water bottle pocket, 4 exterior webbing loops, 3 grab handles
Del Día deadstock fabric
Choose the first if
- You need to pack for trips longer than a few days.
- You want external attachment points for extra gear.
- You prefer a bag with a dedicated stretch mesh water bottle pocket.
Choose the second if
- You want a lighter bag that weighs under 2.5 pounds.
- You prefer unique, one-of-a-kind colors made from deadstock fabric.
- You need a more compact profile for tighter carry-on limits.
Verdict
Choose the 42L model if you prioritize maximum storage capacity and external utility for longer journeys. The 28L version is the better fit if you value a lighter weight and a smaller footprint. Both bags offer the same core organizational structure, so your decision rests on volume and weight needs.
Capacity and Weight Comparison
Capacity and Dimensions
Edge: Cotopaxi Allpa 42L Travel Backpack
The Allpa 42L Travel Pack offers significantly more space for extended trips. Its dimensions are 22 inches in height, 14 inches in width, and 11 inches in length. This larger footprint allows you to pack more clothing and gear. The Allpa 28L Travel Pack is more compact, measuring 19 inches in height, 12 inches in width, and 9 inches in length. It is designed for shorter getaways or carry-on efficiency. If you need maximum storage, the 42L model is the clear choice. For minimalists, the 28L provides a smaller profile.
Weight and Portability
Edge: Cotopaxi Allpa 28L Travel Pack
Weight matters when you are moving through airports or walking long distances. The Allpa 42L Travel Pack weighs 3.09 pounds. The Allpa 28L Travel Pack is lighter at 2.25 pounds. This difference of nearly one pound can feel noticeable during long days of travel. The lighter 28L model reduces the burden on your shoulders and back. It is easier to carry when you are not fully loaded. The 42L model is heavier, even when empty. You should consider how much extra weight you are willing to carry for the additional space it provides.
Laptop Sleeve Compatibility
Edge: Tie
Both packs include a dedicated sleeve for your computer. The Allpa 42L Travel Pack features a 15-inch padded and fleece-lined laptop sleeve. The Allpa 28L Travel Pack also includes a 15-inch padded and fleece-lined laptop sleeve. This means both bags protect the same size device equally well. You do not need to choose one over the other based on your laptop size. Both models ensure your electronics are safe from bumps and scratches during transit. The protection level is identical, so this factor does not influence your decision between the two sizes.
External Pocket Features
Edge: Cotopaxi Allpa 42L Travel Backpack
The external pockets differ between the two models. The Allpa 42L Travel Pack includes a stretch mesh water bottle pocket that fits bottles up to one liter. It also has four exterior webbing loops for attaching extra gear. The Allpa 28L Travel Pack does not list a water bottle pocket or external webbing loops in its specifications. It only mentions a front zip accessory pocket. If you need to carry water or attach items externally, the 42L model offers more utility. The 28L model keeps external features minimal.
Handle Configuration
Edge: Cotopaxi Allpa 42L Travel Backpack
Handling the bag varies by model. The Allpa 42L Travel Pack has three grab handles: on the side, top, and bottom. This allows you to lift it from multiple angles. The Allpa 28L Travel Pack specifications do not mention the number of grab handles. It only lists a roller bag-compatible pass-through strap. The 42L model gives you more options for lifting and carrying the bag manually. This is useful when you need to place it in an overhead bin quickly. The 28L model may have fewer handles, limiting your grip options.
Choose based on your trip length
Travelers needing maximum packing space
Our pick: Cotopaxi Allpa 42L Travel Backpack
The 42L model measures 22 inches high and 14 inches wide. It weighs 3.09 pounds. You get external webbing loops for extra gear and a dedicated stretch mesh pocket for a 1L water bottle. The hip belt helps transfer weight during long days. This larger frame suits extended trips where you need more room.
Light packers preferring minimal weight
Our pick: Cotopaxi Allpa 28L Travel Pack
The 28L option weighs only 2.25 pounds. Its dimensions are 19 inches high and 12 inches wide. It features the Del Día collection, using deadstock fabric for unique colors. This reduces waste and lowers the carbon footprint. If you carry less, this lighter bag reduces strain on your shoulders and back.
Buyers wanting unique color patterns
Our pick: Cotopaxi Allpa 28L Travel Pack
This model belongs to the Del Día collection. Every bag uses deadstock fabric, meaning each one has distinct, random colors. No two bags are identical. If you prefer a one-of-a-kind look over standard solid colors, this 28L pack offers that variety. It still includes the standard organizational pockets and laptop sleeve.
Users needing external attachment points
Our pick: Cotopaxi Allpa 42L Travel Backpack
The 42L pack includes four exterior webbing loops on the back. These allow you to attach extra gear or a duffel bag. The 28L model lacks these specific loops in the data. If you need to strap additional items to the outside of your pack, the larger 42L version provides these attachment options.
Cotopaxi Allpa 42L Travel Backpack
Best for: Extended trips requiring ample packing space
- Capacity
- 42L
- Max Laptop Size
- 15"
- Security Features
- Lockable zippers
- Opening Style
- Suitcase-style full-wrap zipper
- Size
- One Size
- Dimensions
- 11 × 14 × 22 inches
The Cotopaxi Allpa 42L Travel Pack offers 42 liters of capacity in a 22x14x11 inch frame. It weighs 3.09 pounds and features a suitcase-style full-wrap zipper. The design includes a 15-inch padded laptop sleeve and roller bag-compatible pass-through strap. Tuckable shoulder straps and a hip belt help transfer weight. This model suits travelers needing substantial space for longer trips.
- 42-liter main compartment with full-wrap zipper
- 15-inch padded and fleece-lined laptop sleeve
- Roller bag-compatible pass-through strap on the back
- Tuckable shoulder straps and hip belt for weight transfer
- Heavier at 3.09 pounds compared to the 28L variant
- Larger dimensions (22x14x11 inches) reduce carry-on flexibility
- You need extra packing space for week-long trips
- You frequently check bags and want a compliant carry-on backup
- You carry a 15-inch laptop regularly
- You prefer lighter gear under 3 pounds
- You need a compact pack for strict overhead bins
- You travel light with minimal clothing
Verdict: Cotopaxi Allpa 42L Travel Pack fits travelers who prioritize capacity over minimal weight. It is ideal for those who need room for extended trips while keeping a laptop protected.
Cotopaxi Allpa 28L Travel Pack
Best for: Eco-conscious travelers needing a lightweight carry-on
- Capacity
- 28L
- Max Laptop Size
- 15 inches
- Primary Material
- Deadstock fabric
- Opening Style
- Suitcase-style full-wrap zipper
- Size
- One Size
- Dimensions
- 19 × 12 × 9 inches
The Cotopaxi Allpa 28L Travel Pack is a 20-30L carry-on bag measuring 19 x 12 x 9 inches. It weighs 2.25 pounds and features a suitcase-style full-wrap zipper. The interior has three pockets and a 15-inch laptop sleeve. You will get a unique Del Día design made from deadstock fabric. This pack suits travelers who want a lightweight, organized bag with eco-friendly materials.
- 20-30L capacity fits carry-on requirements
- Lightweight 2.25-pound build
- 15-inch padded laptop sleeve
- Suitcase-style full-wrap zipper opening
- 20-30L capacity is smaller than the 42L model
- 2.25-pound weight is heavier than some minimalist packs
- You need a lightweight carry-on bag
- You want unique, eco-friendly fabric designs
- You prefer a suitcase-style opening for packing
- You need maximum packing space for long trips
- You prefer a solid, uniform color
- You want the lightest possible bag
Verdict: Cotopaxi Allpa 28L Travel Pack fits travelers who prioritize eco-friendly materials and a lightweight carry-on size. It is ideal for short trips where unique design matters more than maximum volume.
Specifications side by side
| Spec | Cotopaxi Allpa 42L Travel Backpack | Cotopaxi Allpa 28L Travel Pack |
|---|---|---|
| Capacity | 42L | 28L |
| Max Laptop Size | 15" | 15 inches |
| Primary Material | – | Deadstock fabric |
| Security Features | Lockable zippers | – |
| Opening Style | Suitcase-style full-wrap zipper | Suitcase-style full-wrap zipper |
| Size | One Size | One Size |
| Dimensions | 11 × 14 × 22 inches | 19 × 12 × 9 inches |
| Weight | 3.09 pounds | 2.25 pounds |
| Color | Cotopaxi Black | Del Día |
| Model | S24492U1083 | S25491U1397 |
Frequently asked questions
Is the Allpa 42L a carry-on size?
The Allpa 42L Travel Pack measures 22 inches high, 14 inches wide, and 11 inches long. While these dimensions fit most standard carry-on size restrictions, the pack is heavier at 3.09 pounds. You should check with your specific airline before traveling to ensure it meets their current requirements for overhead bin storage.
Does the Allpa 28L fit under airplane seats?
The Allpa 28L Travel Pack measures 19 inches high, 12 inches wide, and 9 inches long. This compact footprint is designed to fit under most airline seats. Its lightweight construction at 2.25 pounds makes it an ideal choice for travelers who need a personal item that takes up minimal space.
Which model is lighter?
The Allpa 28L Travel Pack is the lighter option. It weighs 2.25 pounds, which is significantly less than the 42L model. The 42L Travel Pack weighs 3.09 pounds. If minimizing the weight of your gear is a priority, the 28L model offers a substantial difference in total pack weight.
Can I use the Allpa 28L for international travel?
The Allpa 28L Travel Pack is best suited for short trips or eco-conscious travelers. It offers a capacity of 20-30 liters. While it provides ample space for essentials, it may not hold enough clothing for extended international journeys. You might need to pack lighter or plan for laundry stops.
What color options are available for these packs?
The Allpa 42L Travel Pack is available in Cotopaxi Black. The Allpa 28L Travel Pack comes in the Del Día colorway. Both models maintain the brand's distinct aesthetic. Your choice of color may depend on your preference for a classic black look versus the unique Del Día design.
Which pack is better for a weekend getaway?
The Allpa 28L Travel Pack is ideal for weekend getaways. It offers 20-30 liters of capacity, which is sufficient for short trips. The 42L model provides significantly more space, which may be unnecessary for a brief weekend. You will find the 28L easier to manage for short durations.
Do both models have the same internal organization?
Both packs share key organizational features. They include a full-wrap zipper opening and similar internal pocket layouts. Each also features a padded laptop sleeve. You can expect consistent accessibility and protection for your electronics regardless of which capacity model you choose.

