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Loco Libre Operator Series Ghost Pepper 20 vs Therm-a-Rest Vesper 32

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

Therm-a-Rest Vesper 32 is the lighter option — 61 g lighter than the Loco Libre Operator Series Ghost Pepper 20 (10% less weight). If grams matter to you, that is the one to beat.
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Spec Loco Libre Operator Series Ghost Pepper 20 Therm-a-Rest Vesper 32
Weight 611 g · 0.611 kg · 1.35 lb 550 g · 0.550 kg · 1.21 lb
Brand Loco Libre Therm-a-Rest
Category Sleep System Sleep System
Loco Libre Operator Series Ghost Pepper 20
611 g

20-degree ultralight quilt with premium down insulation and excellent warmth-to-weight ratio.

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Therm-a-Rest Vesper 32
550 g

Ultralight 32°F sleeping bag with 900-fill-power hydrophobic goose down. Excellent warmth-to-weight ratio for 3-season backpacking.

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Loco Libre Operator Series Ghost Pepper 20 vs Therm-a-Rest Vesper 32: which should you buy?

If saving weight is your priority, the Therm-a-Rest Vesper 32 wins — at 550 g it is 61 g (10%) lighter than the Loco Libre Operator Series Ghost Pepper 20 (611 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 sleep system page, or browse the full gear weight database.

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