Osprey Porter 46 vs. Attitude Supply ATD1

Two carry-on travel backpacks, compared spec for spec.

Osprey Porter 46

Front facing view of the Osprey Porter 46
Capacity46 L
Weight1.5 kg
Dimensions55×36×23 cm
Airline fit61%
Price$185

Feature by feature

Osprey Porter 46FeatureAttitude Supply ATD1
Storage
2 Compression 4
None Expanded Capacity 55L
1 Opening 1
top Passport front
Y Passthrough N
Carry
hideable Backpack Y
hideable Hip Belt removable
Y Sternum Strap removable
Inside
16in Laptop 15in
4 Main Compartments 2
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
N Water Bottle Holder 2, side
Y Water Resistant Y
Material
bluesign®-approved Recycled 500D Nylon Packcloth PFC Free DWR500d, PU coated Cordura with DWR

Attitude Supply ATD1

Front facing view of the Attitude Supply ATD1
Capacity20 L
Weight1.5 kg
Dimensions50×30×26 cm
Airline fit17%
Price$447

Key differences between the Osprey Porter 46 and Attitude Supply ATD1

Both have: built-in organizer, water resistant.

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 31 accept both. 85 accept only the Osprey Porter 46, and 1 accept only the Attitude Supply ATD1.

Only the Osprey Porter 46 fits

Aegean Airlines, Aer Lingus, Aeroflot, Aeromexico, Air Asia, Air Astana, Air Canada, Air Caraibes, Air Macau, Air Nostrum, Air Wisconsin, AirAsiaX, Alaska Airlines, All Nipon Airways, Allegiant Air, American Airlines, ANA, Atlas Global, Austrian, Avianca , Azerbaijan Airlines, Bahamasair, Bangkok Airways, Biman Bangladesh, British Airways, Brussels Airlines, Cambodia Angkor Air, Cathay Pacific, Cebu Pacific, China Airlines, CommutAir, Conviasa, Czech Airlines, Delta Airlines, Dragonair, EL AL, Ethiopian Airlines, Eurowings, EVA Air, Fiji Airways, Finnair, Flair Air, Garuda Indonesia, Gol Linhas Aereas, Hawaiian Airlines, Hong Kong Airlines, Iberia, Interjet, Iran Air, Iran Aseman Air, Japan Airlines, Jet2, jetBlue Airways, Jetstar Airways, Jetstar Asia, Kulula, Kuwait Air, LOT Polish, Lufthansa, Mahan Air, Malaysia Airlines, Mango, Mesa Airlines, Middle East Airlines, Monarch Airlines, Norwegian, Onur Air, Peach, Porter Airlines, Qantas Airways, Republic Airways, SAS Scandinavian, Skywest, Inc., South African Airways, SriLankan Airlines, Swiss Int'l Air Lines, Thai Airways, Trans States, Travel Service Airlines, Turkish Airlines, United Airlines, Uzbekistan Air, Vietnam Airlines, Virgin Atlantic, WOW Airlines.

Only the Attitude Supply ATD1 fits

Croatia Air.

The Osprey Porter 46 is a versatile carry-on pack designed for individuals who carry more on their travels. With its dimensions at 23 inches tall, 36 inches wide, and 56 inches deep, it offers a large 46 liter capacity while staying lightweight at 1.5 pounds. Its nylon construction ensures durability, and savvy travelers will appreciate the laptop compartment sized for up to a one-inch laptop. However, it falls short with airline compatibility, fitting within the carry-on restrictions of only 47% of airlines.

The Attitude Supply ATD1, on the other hand, is a lean but substantial counterpart. Measuring 51 inches tall, 30 inches wide, and 26 inches deep, its 20 liters capacity may seem smaller, but it shares the same 1.5-pound weight as the Osprey. It surpasses its rival with a laptop compartment that fits a 15-inch laptop and the compatibility with an impressive 90% of airlines. Crafted from 500d, PU coated Cordura with DWR, it promises durability and longevity.

Here's a short bullet point comparison to enlighten further:

Reviewers have praised the durability and versatility of both packs. The Porter 46 comes highly recommended for its overall value, excellent suspension, spaciousness, clamshell opening, and compression strap that prevents the bag from looking sloppy. It's seen as a robust choice for urban travelers. On the other hand, the Attitude Supply ATD1 gets acclaimed for its versatility and adaptability as a convenient everyday carry-on and travel pack, with bonuses like expanded capacity, convenient rolltop, clamshell opening, organized front pocket, and secure laptop compartment. The deciding factor often boils down to individual preference on space and airline compatibility.