← Gear database

Gossamer Gear Mirage 40L Pack ALUULA vs Gregory Baltoro 65

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

Gossamer Gear Mirage 40L Pack ALUULA is the lighter option — 1,631 g lighter than the Gregory Baltoro 65 (75% less weight). If grams matter to you, that is the one to beat.
shopping_cart Check today's price on Amazon
Spec Gossamer Gear Mirage 40L Pack ALUULA Gregory Baltoro 65
Weight 549 g · 0.549 kg · 1.21 lb 2,180 g · 2.180 kg · 4.81 lb
Brand Gossamer Gear Gregory
Category Backpack Backpack
Gossamer Gear Mirage 40L Pack ALUULA
549 g

Lightest framed 40L backpack, 19.4oz, ALUULA Graflyte V52 ultra-lightweight fabric

Full details →
Gregory Baltoro 65
2,180 g

Premium 65L pack with Response A3 suspension for heavy loads.

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 Mirage 40L Pack ALUULA vs Gregory Baltoro 65: which should you buy?

If saving weight is your priority, the Gossamer Gear Mirage 40L Pack ALUULA wins — at 549 g it is 1,631 g (75%) lighter than the Gregory Baltoro 65 (2,180 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 Mirage 40L Pack ALUULA vs Gossamer Gear Elixir 20 Daypack Gossamer Gear Mirage 40L Pack ALUULA vs Gossamer Gear Murmur 36 Hyperlight Backpack Gossamer Gear Mirage 40L Pack ALUULA vs Salomon ADV Skin 12 Gossamer Gear Mirage 40L Pack ALUULA vs Zpacks Nero Classic Ultra Backpack Gossamer Gear Mirage 40L Pack ALUULA vs Zpacks Nero Classic 50L Gossamer Gear Mirage 40L Pack ALUULA vs Zpacks Nero Classic Backpack