Cotopaxi Allpa 35L: Complete Buyer’s Guide (2026)
Updated February 2026 · 12 min read

The Cotopaxi Allpa 35L occupies the perfect middle ground: more capacity than compact 30L bags, yet smaller than bulky 40L options. At 20″×12″×10″, it works on most airlines—but that 10″ depth puts it right at the limit for strict carriers like Ryanair and Spirit. If you pack strategically and use compression straps, it’s one of the most versatile travel backpacks available.
Quick Verdict
The Allpa 35L is the Goldilocks backpack: not too big, not too small. It offers 35L capacity (perfect for 7-10 days), excellent organization, and borderline compliance with strict airlines when packed to 28-30L. The trade-off? That 10″ depth requires strategic packing for Ryanair/Spirit—but it’s doable.
Key Specs
Advantages
- 35L sweet spot (7-10 day trips)
- Borderline fits strict airlines (with strategy)
- Excellent organization (multiple compartments)
- Side laptop access (TSA-friendly)
- Clamshell opening for easy packing
- Colorful, distinctive designs
- Ethical brand (B-Corp certified)
Drawbacks
- 10″ depth exactly at airline limits (risky when full)
- No hip belt (weight stays on shoulders)
- $220 price point (not cheap)
- No water bottle pockets
- Compression straps essential for strict airlines
- Heavier than competitors at 3.3 lbs
The 35L Advantage
Most travel backpacks are either 30L or 40L. The Allpa’s 35L capacity fills a crucial gap:
The sweet spot: 35L gives you enough space for a week-plus trip without the bulk of 40L bags. For most travelers doing 7-10 day trips, this is the perfect capacity.
Airline Compatibility: The 10″ Depth Challenge
The Allpa’s 10″ depth is exactly at the limit for many airlines. Here’s how it performs:
Strategy for Strict Airlines
The Allpa CAN work on Ryanair and strict carriers if you:
- Pack to 28-30L (not the full 35L)
- Use compression straps aggressively
- Avoid overstuffing external pockets
- Keep it flexible (don’t pack rigid items)
Success rate: Users report 70-80% success getting through Ryanair gates when following this strategy. The 20-30% failure rate usually results from overpacking or unfriendly gate agents.
Design & Organization
Clamshell Opening
The Allpa opens completely like a suitcase, making packing and finding items much easier than top-loading backpacks. The U-shaped zipper provides full access to the main compartment.
Laptop Compartment
Side-access laptop sleeve fits up to 16″ laptops and is accessible without opening the main compartment. This is a huge advantage during TSA screening—you can grab your laptop without unpacking.
Internal Organization
Multiple mesh pockets, compression straps, and a dedicated shoe compartment keep items organized. Better than the Osprey Farpoint’s single main compartment, though not as extensive as the Nomatic’s 20+ pockets.
Harness System
Padded shoulder straps and sternum strap provide decent comfort, but there’s NO hip belt. All weight stays on your shoulders. For 35L loads (20-25 lbs when full), this can get uncomfortable on long walking days.
Comfort limitation: The lack of a hip belt is the Allpa’s biggest weakness for heavy loads. If you plan to carry 25+ lbs regularly, the Osprey Farpoint 40 with its excellent hip belt will be more comfortable.
User Experience: What Travelers Report
35L is the Perfect Capacity for Most Trips
Users consistently report that 35L is ideal for 7-10 day trips. It’s enough space to avoid doing laundry every 2-3 days, but not so much that you’re tempted to overpack. The capacity forces intentional packing.
Organization is Better Than Osprey, Not as Good as Nomatic
The Allpa strikes a middle ground. It has enough pockets and compartments to stay organized (unlike the Farpoint’s single main compartment), but isn’t as compartmentalized as the Nomatic 30L. Most users find this balance perfect.
Ryanair Success Requires Strategic Packing
Mixed results on strict airlines. Users who pack conservatively (28-30L) and use compression straps report success. Those who pack it full to 35L consistently fail Ryanair’s sizing cage. The bag CAN work, but requires discipline.
No Hip Belt Gets Uncomfortable
Most common complaint: shoulder pain after 2-3 hours of walking with a full load. The lack of hip belt means all 20-25 lbs stays on your shoulders. Fine for short airport walks, tough for all-day city exploration.
Who Should Buy the Allpa 35L?
Perfect For:
- 7-10 day trips – Sweet spot for this capacity
- Light packers who fly multiple airlines – Works on most carriers with strategy
- Organized travelers – Better organization than Osprey, simpler than Nomatic
- TSA PreCheck users – Side laptop access is a huge advantage
- Ethical shoppers – Cotopaxi is B-Corp certified, transparent supply chain
- Those who want distinctive style – Colorful designs stand out
Avoid If:
- You tend to overpack – The 10″ depth requires discipline for strict airlines
- You fly Ryanair exclusively – Nomatic 30L is safer at 9″ depth
- You need maximum comfort – No hip belt; Farpoint 40 better for heavy loads
- You want the simplest design – Osprey Farpoint has fewer features but works flawlessly
- You need 40L capacity – For 10-14 day trips without laundry, get the Farpoint 40
Alternatives to Consider
If you need guaranteed Ryanair compliance:
Nomatic 30L (20″×13″×9″) – Smaller at 30L but reliably fits strict airlines. Trade-off: Less capacity, $300 price.
If you need more capacity and comfort:
Osprey Farpoint 40 or Fairview 40 – 40L capacity, excellent hip belt, $111-200. Trade-off: 9.1″ depth also fails Ryanair, but better comfort.
If you want premium features:
Peak Design Travel Backpack 45L – Expandable 30-45L, photographer-friendly, premium materials, $300. Trade-off: Too large for strict airlines, heavier.
Frequently Asked Questions
Will the Allpa 35L fit Ryanair’s sizing cage?
Maybe. The Allpa’s 10″ depth exceeds Ryanair’s 7.8″ limit by 2.2 inches when fully packed. However, users report 70-80% success when packing to 28-30L capacity and using compression straps aggressively. If you pack it full to 35L, it will fail. See our Ryanair backpack guide for more details.
How many days of clothes fit in the Allpa 35L?
7-10 days comfortably for most people. With strategic packing and packing cubes, some users report 12-14 days for warm-weather trips. The 35L capacity is perfect for a week-plus trip without feeling cramped.
Does the Allpa 35L work on Spirit Airlines?
Yes, if you pay for carry-on. The Allpa’s 10″ depth exactly matches Spirit’s paid carry-on limit (22″×18″×10″). It does NOT fit Spirit’s free personal item (18″×14″×8″). Budget $40-65 for Spirit’s carry-on fee. See our Spirit Airlines guide.
Why is there no hip belt on the Allpa 35L?
Cotopaxi designed the Allpa as a hybrid travel/urban backpack, prioritizing sleek aesthetics and packability over hiking-style features. The lack of hip belt saves weight and bulk but means all weight stays on shoulders. For heavy loads or long walking days, bags like the Osprey Farpoint 40 with hip belts are more comfortable.
Is the Allpa 35L waterproof?
Water-resistant, not waterproof. The 1000D polyester fabric with TPU coating handles light rain (30-45 minutes), but extended downpours will eventually soak through. For heavy rain, pack electronics in dry bags or use a rain cover.
Should I get the 28L or 35L Allpa?
For most travelers, the 35L. The 28L (17.7″×11″×9″) fits Ryanair more reliably but feels cramped for 7+ day trips. Get the 28L only if you fly Ryanair frequently AND are an extreme minimalist packer. The 35L’s extra 7 liters makes a big difference in practical use.
Final Verdict
The Allpa 35L is the Goldilocks bag: not too big, not too small, just right.
If you want 35L capacity (perfect for 7-10 day trips), excellent organization, and borderline compliance with strict airlines, the Allpa delivers. The side laptop access, clamshell opening, and ethical brand ethos are bonuses.
But it’s not for everyone. That 10″ depth requires strategic packing for Ryanair, the lack of hip belt gets uncomfortable with heavy loads, and the $220 price is higher than Osprey alternatives.
Buy this if: You want 35L capacity, fly various airlines, and pack strategically. Skip this if: You overpack, fly only Ryanair, or need maximum comfort with hip belts.
Ready to buy or want to check compatibility first?
Related Guides
Best Backpack for Ryanair
Strict limits and strategic packing tips for the Allpa
Last updated: February 2026
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