Zpacks Bagger Ultra 40L: Ultralight Pack Buying Guide
By Zpacks | Level Up Your Next Adventure | Published: 2026-10-30
Category: Buying Guides
Decide if the discontinued Zpacks Bagger Ultra 40L is right for your ultralight adventures. Compare its strengths, trade-offs, and who should skip it.
Quick Answer
The Zpacks Bagger Ultra 40L is a discontinued ultralight frameless pack that still makes sense for multi-day treks and town carry if you can find one—but only if your total gear weight stays low and you don't need a frame.
Why the Bagger Ultra 40L Stands Out
The Bagger Ultra 40L is designed for ultralight hikers who prioritize minimal weight and simple loading. Its frameless, streamlined build means every ounce counts, and Zpacks quality is evident in the materials and construction.
Because it's discontinued, availability is limited. If you find one, you're getting a pack that was perfect for Mark P., who praised its ease of loading and unloading, typical Zpacks quality, and near-zero weight.
The Trade-Off: Frameless Means Weight Limits
Without a frame, the Bagger Ultra 40L shifts load to your hips and shoulders. This works beautifully when your base weight is low, but it becomes uncomfortable if you carry heavy water, food, or gear. For trips where you need to carry more than about 20–25 pounds, a framed pack is a better choice.
Also, the 40L capacity is small for winter gear or long resupply stretches. It's best for summer multi-day treks or as a roomy daypack for town use.
What to Check Before Buying a Discontinued Pack
Since the Bagger Ultra 40L is no longer in production, inspect any secondhand or remaining stock carefully. Check the fabric for wear, the zippers for smooth operation, and the belt options to ensure they fit your body.
If you can't find the 40L, Zpacks still offers the Bagger 25L, which is a smaller alternative for minimal trips or everyday carry.
Decision Rules for the Bagger Ultra 40L
- Rule 1: Match the pack to your total weight: If your base weight plus consumables stays under roughly 20–25 pounds, the frameless Bagger Ultra 40L will feel great. If you regularly carry more, choose a framed pack like the Arc Haul Ultra for better load transfer. Weigh your full load before committing.
- Rule 2: Match the capacity to your trip length: Use the 40L for multi-day summer treks or town carry. For winter gear or long resupplies, you'll need more volume—look at larger packs. List your gear volume to see if 40L fits.
- Rule 3: Verify condition before buying: Because it's discontinued, inspect any available unit for wear, zipper function, and belt fit. If you can't find a good 40L, the Bagger 25L is a solid fallback for minimal trips. Don't overpay for a worn pack; compare with the 25L.
Key Product Facts
- Bagger Ultra 40L Backpack DISC: The Bagger Ultra 40L is an ultralight frameless pack perfect for multi-day treks in the Adirondacks or for carrying around town, featuring a small and streamlined design. This confirms the pack is built for lightweight, simple loads—ideal for fast and light trips, not heavy expedition loads.
Bagger Ultra 40L Backpack DISC - Bagger Ultra 40L Backpack DISC: This item has been discontinued; the 25L Bagger can still be found. Availability is limited, so if you find one, act quickly—but also consider the 25L if you need less capacity.
Who Should Choose This Pack
Best for
- Ultralight hikers who keep total pack weight under 20–25 pounds
- Multi-day treks in mild conditions or everyday town use
Not for
- Hikers who need to carry heavy loads or bulky winter gear
- Those who require a frame for load support on long, rough trails
