Hyperlite Mountain Gear Pemi 15 Running Vest vs Zpacks Nero Pro Ultralight Backpack 30L
Weight and specs compared for 2026 — and which one to choose.
Running vest using ALUULA Graflyte fabric for ultralight trail runners.
Full details →Sub-one-pound waterproof frameless pack, 16oz, seam-taped Ultra fabric body
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Hyperlite Mountain Gear Pemi 15 Running Vest vs Zpacks Nero Pro Ultralight Backpack 30L: which should you buy?
If saving weight is your priority, the Hyperlite Mountain Gear Pemi 15 Running Vest wins — at 351 g it is 104 g (23%) lighter than the Zpacks Nero Pro Ultralight Backpack 30L (455 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.