Hyperlite Mountain Gear Aero 28 Ultralight Fastpack vs Zpacks Nero Pro Ultralight Backpack 30L
Weight and specs compared for 2026 — and which one to choose.
Ultralight fastpacking pack with 28L capacity + 8.5L external storage. Dyneema Composite Hybrid construction, vest-style harness, removable hip belt.
Sub-one-pound waterproof frameless pack, 16oz, seam-taped Ultra fabric body
Building a pack? Add either one to your HikeLoad list, or drop its weight into the base weight calculator, and see what it does to your total weight.
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Hyperlite Mountain Gear Aero 28 Ultralight Fastpack vs Zpacks Nero Pro Ultralight Backpack 30L: which should you buy?
If saving weight is your priority, the Zpacks Nero Pro Ultralight Backpack 30L wins — at 455 g it is 51 g (10%) lighter than the Hyperlite Mountain Gear Aero 28 Ultralight Fastpack (506 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.
See where both rank against everything else in this category on the lightest backpack page, or browse the full gear weight database.