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Hyperlite Mountain Gear Southwest 55 Backpack vs ULA Ohm 2.0

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

ULA Ohm 2.0 is the lighter option — 283 g lighter than the Hyperlite Mountain Gear Southwest 55 Backpack (33% less weight). If grams matter to you, that is the one to beat.
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Spec Hyperlite Mountain Gear Southwest 55 Backpack ULA Ohm 2.0
Weight 850 g · 0.850 kg · 1.87 lb 567 g · 0.567 kg · 1.25 lb
Brand Hyperlite Mountain Gear ULA
Category Backpack Backpack
Hyperlite Mountain Gear Southwest 55 Backpack
850 g

Robust ultralight pack with Dyneema Composite Hybrid fabric and two aluminum stays. Ideal for technical terrain and variable weather conditions.

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ULA Ohm 2.0
567 g

Ultralight 50L frameless pack with framesheet option.

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Hyperlite Mountain Gear Southwest 55 Backpack vs ULA Ohm 2.0: which should you buy?

If saving weight is your priority, the ULA Ohm 2.0 wins — at 567 g it is 283 g (33%) lighter than the Hyperlite Mountain Gear Southwest 55 Backpack (850 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.

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