All sleeping bag inners are made from highly breathable, robust Vapour Vent (V2) fabric. We use three weights of V2 fabric: V2-15, V2-30 and V2-50 denier. The tight weave of the fabrics make them ‘downproof by construction’: coatings (which can affect breathability) are not required. A non-downproof version of V2-30 is used in our synthetic range.
Draft tube and neck muff
One Planet sleeping bags use dual, D-shaped, three-dimensional draft tubes to stop any cold breezes at the zip. (The Robin Hoodless and Stowaway have a single draft tube, while the Booster bags don’t have any.) Fabric near the zip is firmly sewn-off to prevent the slider snagging.
All One Planet bags (except the Booster, Robin Hoodless and Stowaway) have three-dimensional neck muffs: an elasticised collar that works independently to the hood, stopping warm air escaping from the neck and shoulders when you move during the night.
Internal security pocket
All One Planet sleeping bags have an internal zippered security pocket. It is the perfect size for keeping your passport, cash, small electronics and other vital items out of harm’s way while you sleep. In sub-zero temperatures the pocket is also fantastic for keeping batteries operational and contact lenses from freezing.