Bivies /
Big Sky International Wisp 1P SuprBivy
300 – 665 g
across 3 sizes
Size / variantClaimed (g)Verified (g)Measurement note
DCF300—
SuprSil-UL (UL version)583—
SuprSil-UL (MV version)665—
MaterialsSuprSil-UL silnylon or DCF, no-see-um meshBrand countryUnited StatesProduct pagebigskyinternational.com ↗NotesSingle-wall bivy tent pitched with a trekking pole. UL version has a silnylon floor (rev. E), MV version a non-slip seam-taped floor (rev. D). The SuprSil-SUL version is offered without a listed weight.
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