Bagger Ultra 25L vs Arc Haul Ultra 40L: Which Pack Fits You?
By Zpacks | Level Up Your Next Adventure | Published: 2026-10-16
Category: Comparisons
Compare the Bagger Ultra 25L and Arc Haul Ultra 40L on volume, frame design, and carry comfort to decide which ultralight pack matches your trip length and load.
Quick answer
Choose the Bagger Ultra 25L if you hike fast and light with minimal gear and want a simple, body-only pack, but be aware it requires a separate belt and straps. Choose the Arc Haul Ultra 40L if you need more volume for multi-day trips or long resupply gaps and want a framed pack that transfers weight to your hips.
Volume and load: 25L vs 40L
The Bagger Ultra 25L is a 25-liter pack body, while the Arc Haul Ultra 40L offers 40 liters. That 15-liter difference is roughly the space needed for a multi-day food carry or a bulky synthetic quilt. If your trips are overnight or you resupply frequently, 25 liters can work. For 3–5 day trips or long food carries, 40 liters gives you room without strapping gear outside.
Frame and carry comfort
The Arc Haul Ultra 40L is built around a vertical carbon fiber Arc Frame that slides into webbing pockets and transfers weight to your hips. The Bagger Ultra 25L is a frameless pack body, so the weight rides on your shoulders unless you add a belt and straps. Frameless packs save weight but are less comfortable above 20–25 pounds. Framed packs like the Arc Haul handle heavier loads better.
Materials and durability
The Arc Haul Ultra 40L uses Ultra 100X material, which is known for durability and water resistance. The Bagger Ultra 25L material is not specified in the catalog, so we cannot confirm its exact fabric. If you frequently bushwhack or expect abrasion, the Arc Haul's Ultra 100X gives more confidence.
Customization and fit
The Arc Haul Ultra 40L offers options for belt length, torso height, and color, so you can dial in the fit. The Bagger Ultra 25L only offers color as an option; belt and straps are sold separately. That means you'll need to choose a compatible belt and strap system to make the Bagger complete. The Arc Haul comes ready to carry with its frame and hip belt.
Trade-offs to weigh
- Weight vs. comfort: The Bagger Ultra 25L is lighter because it's frameless, but the Arc Haul Ultra 40L carries weight better with its frame. Choose based on your typical pack weight: under 20 lbs, frameless is fine; over 25 lbs, go framed.
- Cost vs. completeness: The Bagger Ultra 25L starts at a lower price but requires buying a belt and straps separately, which adds cost and weight. Compare total cost and weight of a complete Bagger setup against the Arc Haul's all-in price.
- Simplicity vs. adjustability: The Bagger Ultra 25L comes in one torso size with only color options, while the Arc Haul Ultra 40L offers belt length and torso height choices. If fit is critical, the Arc Haul's sizing options reduce the chance of a poor fit.
Key product facts
- Arc Haul Ultra 40L Backpack (DISC): Arc Haul Ultra 40L is made from Ultra 100X material and is designed for long days between resupplies with ample space and durability. The durable fabric and 40L volume suit multi-day trips and rough terrain.
- Bagger Ultra 25L Backpack Body: Bagger Ultra 25L is a backpack body only; belt and straps are sold separately. You must factor in the cost and weight of a belt and straps to make it a complete pack.
- V Top Strap: V Top Strap adds stability when carrying heavier items on top of your backpack and can secure a bear canister. Useful if you need to lash extra gear or a canister externally on either pack.
Which pack is right for you?
Best for
- Ultralight hikers doing overnight or fast-and-light trips with minimal gear
- Those who already own a compatible belt and straps or want to customize their setup
- Hikers who prioritize the lightest possible base weight and don't mind a frameless carry
Not for
- Hikers carrying more than 25 pounds or bulky gear for multi-day trips
- Those who want a complete, ready-to-hike pack out of the box without buying extra parts
- Hikers who need adjustable torso sizing for a precise fit
