← Gear database

Gossamer Gear Gorilla 40 vs Osprey Kestrel 48

Weight and specs compared for 2026 — and which one to choose.

Gossamer Gear Gorilla 40 is the lighter option — 849 g lighter than the Osprey Kestrel 48 (57% less weight). If grams matter to you, that is the one to beat.
shopping_cart Check today's price on Amazon
Spec Gossamer Gear Gorilla 40 Osprey Kestrel 48
Weight 651 g · 0.651 kg · 1.44 lb 1,500 g · 1.500 kg · 3.31 lb
Brand Gossamer Gear Osprey
Category Backpack Backpack
Gossamer Gear Gorilla 40
651 g

Lightweight 40L weekend pack with internal frame.

Full details →
Osprey Kestrel 48
1,500 g

Adjustable 48L pack with AirScape back panel.

Full details →

HikeLoad is reader-supported. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Learn more.

Gossamer Gear Gorilla 40 vs Osprey Kestrel 48: which should you buy?

If saving weight is your priority, the Gossamer Gear Gorilla 40 wins — at 651 g it is 849 g (57%) lighter than the Osprey Kestrel 48 (1,500 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.

More backpack comparisons

Gossamer Gear Gorilla 40 vs Gossamer Gear Elixir 20 Daypack Gossamer Gear Gorilla 40 vs Gossamer Gear Murmur 36 Hyperlight Backpack Gossamer Gear Gorilla 40 vs Salomon ADV Skin 12 Gossamer Gear Gorilla 40 vs Zpacks Nero Classic Ultra Backpack Gossamer Gear Gorilla 40 vs Zpacks Nero Classic 50L Gossamer Gear Gorilla 40 vs Zpacks Nero Classic Backpack