4 Best Osprey Ultralight Hiking Backpacks, Compared

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Finding the best osprey ultralight hiking backpacks requires looking at published specifications. We compared 4 models to help you choose. The Osprey Exos 48L Ultralight Pack leads the list. Its 2.77 pound weight makes it ideal for men seeking ultralight mid-capacity packs. The selections rely strictly on the specs found on each listing. This guide helps you decide which pack matches your body and trip length. You will see how weight, dimensions, and capacity vary across these ultralight options. Focus on the numbers that matter for your next hike.

Choose capacity based on trip length

Select your pack by matching capacity to trip duration. Overnight hikers should consider the 38L or 48L models, which weigh between 2.59 and 2.77 pounds. For extended multi-day expeditions, the 58L option provides the necessary extra space. The 58L model weighs 2.94 pounds. Match the volume to your gear needs to stay within the ultralight class.

The best fit for you

• You want the best overall ultralight mid-capacity pack – Osprey Exos 48L Ultralight Pack – It weighs 2.77 pounds and holds 48 liters for balanced ultralight performance.
• You need a lightweight pack for overnight women's hiking – Osprey Eja 38L Women's Ultralight – This 2.59 pound pack offers adjustable fit for moderate overnight distances.
• You seek ultralight capacity for short overnight trips – Osprey Exos 38L Ultralight – Weighing 2.69 pounds, it provides hipbelt pockets for moderate day needs.
• You plan extended multi-day backpacking expeditions – Osprey Exos 58L Men's Ultralight – Its 58 liter capacity justifies the 2.94 pound weight for longer trips.

Specifications side by side

Spec	Osprey Exos 48L Ultralight Pack	Osprey Eja 38L Women's Ultralight	Osprey Exos 38L Ultralight	Osprey Exos 58L Men's Ultralight
Gear Capacity	48L	38L	38L	58L
Gender Fit	Men's	Women's	Men's	Men's
Torso Adjustability	Injection-molded ladder	Injection-molded ladder	Injection-molded ladder	–
Suspension Type	Airspeed	Airspeed	AirSpeed	–
Loading Access	Removable floating lid	Removable floating lid	Removable floating lid	–
Hydration Support	Internal hydration sleeve	Internal hydration sleeve	Internal hydration sleeve	–
Intended Use	Hiking, Backpacking	Hiking, Backpacking	Hiking, Backpacking	Hiking, Backpacking
Target Audience	Men's	Women's	Men's	Men's
Recommended Use	Camping	Camping	Camping	Camping
Weight Class	Ultralight	Ultralight	Ultralight	Ultralight
Dimensions	29.5 × 14.2 × 11.8 inches	27.6 × 13 × 11.8 inches	29.5 × 13 × 11.8 inches	32.3 × 14.6 × 13 inches
Weight	2.77 pounds	2.59 pounds	2.69 pounds	2.94 pounds
Size	Small-Medium	WXS/S	Small-Medium	Large-X-Large
Color	Blue Ribbon	Deep Teal	Blue Ribbon	Blue Ribbon
Model	10004023	10004035	10004026	10004021

How to choose the right one

Match capacity to trip length

Select a pack volume that aligns with your planned journey duration. The Exos 48L Ultralight Pack offers 48 liters, making it suitable for overnight or weekend trips where you need balanced storage without excess bulk. If you plan extended multi-day backpacking trips, the 58L model provides the additional capacity required for longer expeditions. Choosing the correct volume ensures you carry only what you need, keeping your load manageable and efficient on the trail.

Prioritize lightweight construction

Ultralight packs minimize fatigue over long distances by reducing base weight. The Exos 48L weighs 2.77 pounds, offering a reliable balance for men seeking mid-capacity options. For those prioritizing minimal weight, the Eja 38L Women's Ultralight tips the scales at just 2.59 pounds. Every ounce saved contributes to a more comfortable hike. Compare the published weight specifications to find the model that best supports your goal of reducing pack burden while maintaining necessary durability and structure.

Select appropriate torso size

Proper fit depends on your torso length and body frame. The Exos 48L and 38L models come in Small-Medium sizes, catering to specific height ranges. The 58L variant is available in Large-X-Large, accommodating taller or broader frames. The Eja 38L offers a WXS/S size for smaller women. Ensure the pack size matches your measurements to distribute weight evenly across your hips and shoulders, preventing strain and improving stability while moving through varied terrain.

Consider gender-specific designs

Osprey designs packs tailored to different anatomies for improved comfort. The Eja 38L is built specifically for women, featuring an adjustable fit that balances capacity and weight for moderate overnight distances. Men should look at the Exos series, which includes the 38L and 48L models. These are optimized for male body shapes. Choosing a pack designed for your gender ensures the hipbelt and shoulder straps align correctly with your body, enhancing load carriage efficiency.

Verify intended use compatibility

Confirm the pack suits your primary outdoor activities. All listed models are rated for hiking and backpacking, with recommended use for camping. The Exos 48L is ideal for overnight trips, while the 58L serves longer expeditions. The 38L models fit short hikes or ultralight overnighters. Ensure the intended use matches your plans. A pack designed for hiking may not support heavy expedition loads, so check the specifications to guarantee the gear meets your specific recreational needs.

Frequently asked questions

What is the lightest Osprey ultralight backpack on the list?

The Osprey Eja 38L Women's Ultralight is the lightest option at 2.59 pounds. It features a WXS/S size and measures 27.6 inches in length. This model is designed for women seeking a lightweight pack for overnight hiking trips with an adjustable fit.

Which Osprey pack offers the most capacity for long trips?

The Osprey Exos 58L Men's Ultralight provides the highest capacity at 58 liters. It weighs 2.94 pounds and measures 32.3 inches in length. This Large-X-Large pack is intended for extended multi-day backpacking trips where extra storage space is necessary.

Does the Osprey Exos 48L fit men with shorter torsos?

The Osprey Exos 48L Ultralight Pack is available in a Small-Medium size. This size accommodates men who need an adjustable fit for mid-capacity loads. At 2.77 pounds, it balances weight savings with reliable performance for overnight or weekend hiking adventures.

Are there Osprey ultralight packs available for women?

Yes, the Osprey Eja 38L Women's Ultralight is specifically targeted at women hikers. It weighs 2.59 pounds and offers an adjustable fit for moderate distances. This model is best for overnight hiking and camping trips where weight is a priority.

How does the Exos 38L compare to the 48L model?

The Exos 38L Ultralight weighs 2.69 pounds, which is slightly lighter than the 48L model's 2.77 pounds. Both are available in Small-Medium sizes and target men. The 38L is optimized for overnight ultralight hiking, while the 48L offers more capacity for weekend trips.

What are the dimensions of the Osprey Exos 58L?

The Osprey Exos 58L Men's Ultralight measures 14.6 inches in width, 13 inches in height, and 32.3 inches in length. It is designed for Large-X-Large torso sizes. These dimensions support its role as a high-capacity pack for extended expeditions.

See also

• best osprey hiking backpacks for backpacking
• best osprey hiking backpacks for men s
• best osprey travel backpacks
• best generators for hiking