← Gear database

Hyperlite Mountain Gear Pemi 15 Running Vest vs Mountain Hardwear Alakazam 45L ALUULA Graflyte

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

Hyperlite Mountain Gear Pemi 15 Running Vest is the lighter option — 469 g lighter than the Mountain Hardwear Alakazam 45L ALUULA Graflyte (57% less weight). If grams matter to you, that is the one to beat.
shopping_cart Check today's price on Amazon
Spec Hyperlite Mountain Gear Pemi 15 Running Vest Mountain Hardwear Alakazam 45L ALUULA Graflyte
Weight 351 g · 0.351 kg · 0.77 lb 820 g · 0.820 kg · 1.81 lb
Brand Hyperlite Mountain Gear Mountain Hardwear
Category Backpack Backpack
Hyperlite Mountain Gear Pemi 15 Running Vest
351 g

Running vest using ALUULA Graflyte fabric for ultralight trail runners.

Full details →
Mountain Hardwear Alakazam 45L ALUULA Graflyte
820 g

Spring 2026 framed ultralight pack in new ALUULA fabric; one of first mainstream packs with this material

Full details →

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

Hyperlite Mountain Gear Pemi 15 Running Vest vs Mountain Hardwear Alakazam 45L ALUULA Graflyte: which should you buy?

If saving weight is your priority, the Hyperlite Mountain Gear Pemi 15 Running Vest wins — at 351 g it is 469 g (57%) lighter than the Mountain Hardwear Alakazam 45L ALUULA Graflyte (820 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

Hyperlite Mountain Gear Pemi 15 Running Vest vs Gossamer Gear Elixir 20 Daypack Hyperlite Mountain Gear Pemi 15 Running Vest vs Gossamer Gear Murmur 36 Hyperlight Backpack Hyperlite Mountain Gear Pemi 15 Running Vest vs AONIJIE FH2522 22L Hiking Backpack Hyperlite Mountain Gear Pemi 15 Running Vest vs Salomon ADV Skin 12 Hyperlite Mountain Gear Pemi 15 Running Vest vs Zpacks Nero Classic Ultra Backpack Hyperlite Mountain Gear Pemi 15 Running Vest vs Zpacks Nero Classic 50L