Quick Comparison

For those seeking an ultralight backpack for their outdoor adventures, both the Osprey Exos Pro 55 Backpack and the Gossamer Gear Mariposa 60 offer unique features and benefits. The Osprey Exos Pro 55 is praised for its comfort and adjustability, while the Gossamer Gear Mariposa 60 stands out for its ultralight construction and modular design.

Features

The Osprey Exos Pro 55 features a tensioned mesh back panel, adjustable harness system, and a variety of pockets for organization. It has a weight-to-volume ratio of 0.89 ounces per liter, which improves when considering all storage pockets. The Gossamer Gear Mariposa 60, on the other hand, boasts an ultralight construction at just 32.6 ounces, a modular design for customization, and a spacious 60-liter capacity with multiple external pockets for easy access.

Pros & Con

Pros Comparison

• Osprey Exos Pro 55:
  • Exceptional comfort with tensioned mesh back panel
  • Ample organizational pockets
  • Suitable for beginners in ultralight backpacking
• Gossamer Gear Mariposa 60:
  • Ultralight and durable construction
  • Exceptional comfort and support
  • Modular design for customization and weight reduction
  • Ample storage capacity with multiple pockets
  • Versatile use for various backpacking activities

Cons Comparison

• Osprey Exos Pro 55:
  • Heavier than other ultralight packs
  • Mesh back may have durability concerns
• Gossamer Gear Mariposa 60:
  • Removable back panel can bunch up
  • Could benefit from more cinch straps for tightening when not fully loaded
  • Limited color options

What People Think of Both Products

The Osprey Exos Pro 55 is well-received for its comfort and ability to carry heavy loads on long-distance trips. The Gossamer Gear Mariposa 60 is also favored for its lightweight design and comfort, with the added benefit of a modular system that allows for a tailored backpacking experience. Both packs have a dedicated user base that appreciates their respective strengths for different types of backpacking adventures.

Alternatives

Alternatives to the Osprey Exos Pro 55 include the Hyperlite Mountain Gear Southwest 3400, Zpacks Arc Blast, and Gossamer Gear Mariposa 60. For the Gossamer Gear Mariposa 60, alternatives are the Hyperlite 3400 Southwest, Zpacks Arc Blast 55, ULA Circuit 68, Osprey Levity 60, and REI Co-op Flash 55.

Other relevant topics

The Osprey Exos Pro 55 is available in two sizes and is made from durable materials with a comprehensive warranty. The Gossamer Gear Mariposa 60 is constructed from recycled materials, reflecting the company’s commitment to sustainability, and is known for excellent customer service and competitive pricing.

Summary: Who is the winner?

Choosing a winner between the Osprey Exos Pro 55 and the Gossamer Gear Mariposa 60 depends on the backpacker’s priorities. If comfort and organizational features are paramount, the Osprey Exos Pro 55 may be the better choice. However, for those prioritizing an ultralight pack with a modular design and ample storage, the Gossamer Gear Mariposa 60 comes out on top. Both packs are excellent choices, but the Mariposa 60’s lighter weight and versatility give it a slight edge for long-distance trekkers who count every ounce.