Hyperlite Mountain Gear Aero 28 Ultralight Fastpack vs Hyperlite Mountain Gear Daybreak 22 Daypack
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.
Dyneema Stretch Mesh pockets with new front zipper pocket for daily hiking.
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.
HikeLoad is reader-supported. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Learn more.
Hyperlite Mountain Gear Aero 28 Ultralight Fastpack vs Hyperlite Mountain Gear Daybreak 22 Daypack: which should you buy?
If saving weight is your priority, the Hyperlite Mountain Gear Aero 28 Ultralight Fastpack wins — at 506 g it is 38 g (7%) lighter than the Hyperlite Mountain Gear Daybreak 22 Daypack (544 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.