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Platypus SoftBottle 1L vs Therm-a-Rest Z-Seat Sit Pad

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

Platypus SoftBottle 1L is the lighter option — 30 g lighter than the Therm-a-Rest Z-Seat Sit Pad (53% less weight). If grams matter to you, that is the one to beat.
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Spec Platypus SoftBottle 1L Therm-a-Rest Z-Seat Sit Pad
Weight 27 g · 0.027 kg · 0.06 lb 57 g · 0.057 kg · 0.13 lb
Brand Platypus Therm-a-Rest
Category Miscellaneous Miscellaneous
Platypus SoftBottle 1L
27 g

Ultralight collapsible water bottle. Rolls up when empty.

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Therm-a-Rest Z-Seat Sit Pad
57 g

Durable lightweight foam sit pad at 57 grams.

Full details →

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Platypus SoftBottle 1L vs Therm-a-Rest Z-Seat Sit Pad: which should you buy?

If saving weight is your priority, the Platypus SoftBottle 1L wins — at 27 g it is 30 g (53%) lighter than the Therm-a-Rest Z-Seat Sit Pad (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 miscellaneous page, or browse the full gear weight database.

More miscellaneous comparisons