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Gregory Focal 58 vs REI Co-op Flash 45
Weight and specs compared for 2026 — and which one to choose.
Gregory Focal 58 is the lighter option — 20 g lighter than the REI Co-op Flash 45 (2% less weight). If grams matter to you, that is the one to beat.
Gregory Focal 58
1,170 g
Ventilated ultralight backpacking pack with a tensioned mesh backpanel, removable lid and roughly 16kg max recommended load.
Check price Full details →Gregory Focal 58 vs REI Co-op Flash 45: which should you buy?
If saving weight is your priority, the Gregory Focal 58 wins — at 1,170 g it is 20 g (2%) lighter than the REI Co-op Flash 45 (1,190 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.