Hyperlite Mountain Gear Aero 28 Ultralight Fastpack vs Hyperlite Mountain Gear Contour 35 Backpack
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.
Full details →Ultralight 35L frameless backpack with Dyneema DCF fabric for thru-hiking. Weighs only 16.2oz with 6 external pockets.
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Hyperlite Mountain Gear Aero 28 Ultralight Fastpack vs Hyperlite Mountain Gear Contour 35 Backpack: which should you buy?
If saving weight is your priority, the Hyperlite Mountain Gear Contour 35 Backpack wins — at 459 g it is 47 g (9%) 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.