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Flextail Zero Pump 2 vs Victorinox Classic SD

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

Victorinox Classic SD is the lighter option — 36 g lighter than the Flextail Zero Pump 2 (63% less weight). If grams matter to you, that is the one to beat.
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Spec Flextail Zero Pump 2 Victorinox Classic SD
Weight 57 g · 0.057 kg · 0.13 lb 21 g · 0.021 kg · 0.05 lb
Brand Flextail Victorinox
Category Tools Tools
Flextail Zero Pump 2
57 g

Ultralight pad inflator weighs 0.2 oz less than original with improved threading and sealing.

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Victorinox Classic SD
21 g

Keychain Swiss Army Knife. Minimal and always useful.

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Flextail Zero Pump 2 vs Victorinox Classic SD: which should you buy?

If saving weight is your priority, the Victorinox Classic SD wins — at 21 g it is 36 g (63%) lighter than the Flextail Zero Pump 2 (57 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 tools page, or browse the full gear weight database.

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