The Zpacks Arc Haul Ultra 60 Is Our Favorite Ultralight Pack of 2026. Here’s Why.

Why It Matters

The Arc Haul Ultra 60 proves ultralight packs can match traditional backpacks in capacity and comfort, reshaping expectations for weight‑critical outdoor gear.

Key Takeaways

• Pack weighs 1 lb 7 oz, measured in lab, despite full features
• 60‑liter capacity holds 55 L in main compartment, plus pockets
• Carbon‑fiber internal frame provides ventilation and supports up to 40 lb
• PFAS‑free, UHMWPE fabric offers high water resistance without DWR
• Modular straps and removable hip belt let users trim weight as needed

Pulse Analysis

The ultralight backpack segment has accelerated in recent years, driven by hikers seeking to shave every ounce without sacrificing functionality. Zpacks’ Arc Haul Ultra 60 stands out by marrying cutting‑edge materials—its 100X UHMWPE face fabric is both PFAS‑free and laminated for waterproof performance—while avoiding the chemical finishes common in competing packs. This sustainable approach not only appeals to eco‑conscious consumers but also delivers a breathable, rain‑ready shell that eliminates the need for external pack covers.

Performance testing reveals why the Arc Haul Ultra 60 is a game‑changer. Weighing just 1 lb 7 oz, the pack still offers a full 60‑liter capacity, with 55 L accessible in the main compartment and additional side and front pockets. The carbon‑fiber internal frame creates an air gap for superior airflow, supporting loads up to 40 lb with only 40 % of the weight transferred to the shoulders. Even at 50 lb, the pack maintains stability, a benchmark rarely achieved by ultralight designs, positioning it as a viable alternative to traditional, heavier backpacks.

For the outdoor gear market, Zpacks sets a new benchmark that could pressure legacy manufacturers to innovate faster. The modularity—removable hip belt, interchangeable shoulder straps, and optional accessories—allows users to customize weight and functionality, catering to both fast‑packing purists and multi‑day trekkers. As hikers increasingly prioritize both performance and environmental stewardship, the Arc Haul Ultra 60’s blend of lightweight engineering, durability, and sustainable materials is likely to influence product roadmaps across the industry, making ultralight comfort the new standard.