Osprey Porter 46 vs. Exped Skyline 15

The Osprey Porter 46 by Osprey is a behemoth carry on backpack with a hefty 46 litre capacity. Measuring in at 23 inches tall, 36 inches wide, and 56 inches deep, and weighing 1.5 pounds, this backpack is compatible with just shy of half of all airlines. Renowned for its durability, its primary material is Nylon and boasts a laptop compartment that can accommodate a 1 inch laptop. With capacity comes a potential downside - it can appear bulky. However, its design allowances, like the compression strap, reduce the bulkiness and keep it looking tidy.

On the other hand, the Exped Skyline 15 by Exped is a smaller, lighter carry on backpack that focuses on portability and convenience. At 1.1 pounds and sizing up to 53 inches tall, 26 inches wide, and 17 inches deep, this pack maximizes its compatibility with 99% of airlines so you can fly without a worry. Although it only has 15 litres of capacity, it makes up for this with a plethora of organizational pockets. Unlike the Osprey Porter 46, the Exped Skyline 15 is made of sturdier 210D Robic HD Ripstop Nylon that has been PU coated for additional support. Having no laptop compartment might be a downside for some travellers, but its switchback suspension system and included rain cover offer unique selling points.

Comparing the two:

• The Osprey Porter is significantly larger and accommodates more belongings
• The Exped Skyline 15 offers numerous organizational compartments despite its smaller capacity
• The Osprey Porter 46 is heavier but remarkably more durable than the Exped Skyline 15
• Unlike the Skyline 15, the Porter 46 features a laptop compartment
• The Skyline 15's switchback system and compact form factor maximize airline compatibility

The Traveller review summarized the Osprey as a substantial pack meant for those who prefer to carry more items during travel. It can be bulked up or cinched down, flexible for a range of luggage quantities. Meanwhile, the review praised the Exped Skyline 15 for its versatility, perfect for various activities beside travelling, such as mountain biking, peak climbing, or bike commuting, thus aptly capturing its wide appeal.

In conclusion, the final decision lies on what suits your travel style the most. If you value size and durability, the Osprey Porter 46 might be best fit for your larger gears. However, if portability and versatility are your priorities, the Exped Skyline 15 can meet your needs while offering features such as a unique suspension system and a rain cover.