One Planet Sonder -3 800+DWR Sleeping Bag

$499.95
The Sonder is a streamlined, practical bag with versatile features, a spacious cut and a lighter build, designed for comfort and warmth year-round. It’s available in three temperature ratings (-3, -5, -8°C ISO 23537-1 limit-of-comfort rating), and small, regular and large sizes. The tapered rectangular shape gives space to move,...
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$549.95

The Sonder is a streamlined, practical bag with versatile features, a spacious cut and a lighter build, designed for comfort and warmth year-round. It’s available in three temperature ratings (-3, -5, -8°C ISO 23537-1 limit-of-comfort rating), and small, regular and large sizes. The tapered rectangular shape gives space to move, while the Vertical V-baffle system and draft tube keep warmth where you need it (even as you wriggle around!). The shell is made from durable, water-repellent and highly breathable 10 D Vapour Vent V2 fabric, with a full-length YKK #5 zip and anti-snag locking slider. A separate foot zip allows it to be opened fully to manage warmth.

  • Tapered rectangular shape gives versatility and roomy comfort
  • Box-wall baffles give maximum thermal efficiency
  • Vertical-V baffling system reduces down migration, keeping it trapped where you need it most
  • Differentially cut baffles promote full and complete lofting of down
  • The half-moon foot-box is wide and cosy, while base draft tubes keep you warm and toasty
  • The contoured hood encloses your head, cinching tight while leaving enough space for your nose and mouth
  • Full-length side zip runs from hood to ankle: a YKK #5 with locking slider and innovative, anti-snag cover
  • Independent zip on the foot (from ankle to ankle) can be opened fully for extra ventilation
  • The two zips meet above the ankle, with a 10 cm crossover to keep draughts out
  • Selecting a zip side is easy: when lying in a sleeping bag, a left-hand zip (LH) is on your left side
  • Joined at the zip: full-length zips allow models with compatible left and right zips to be zipped together
  • Hydrophobic Down repels water, helping down stay lofty in all conditions
  • Your choice of down: ethically-sourced Hydrophobic Down in either 700-750 loft, or lighter (but just as warm) 800-850 loft
  • Water-resistant thread is used to make a durable, well-sealed sleeping bag
  • Hang loops on the foot-box allow you to easily hang, dry and store your sleeping bag

SPECIFICATIONS

Intended use: bushwalking, camping

Temperature rating: independently tested in accordance with ISO 23537-1

Available sizes: small, regular, large

Shape: tapered rectangular

Baffle construction: Vertical-V baffle system (vertical/V-baffles) with box wall construction

Zip: YKK #5 with locking slider and anti-snag cover

Zip configuration: full-length zip with separate, ankle-to-ankle foot zip

Zip side: small in RH; regular with RH or LH zips; large with LH
When lying on your back in a sleeping bag: a left or LH zipper is on your left side, a right or RH is on your right side.

Zip pull: glows in the dark

Shell fabric: 10-denier Vapour Vent V2. Downproof by construction, highly breathable, with C0, environmentally-friendly water repellent treatment

Internal fabric: 10-denier Vapour Vent V2. Downproof by construction, highly breathable and naturally water repellent

Down loft: available in 700-750 or 800-850 loft, both tested by the IDFL

Down distribution: 55% top, 45% bottom

Down treatment: DWR (hydrophobic durable water repellency)

Booster compatible: Quest series boosters

Lightweight stuff sack: included

Storage bag: included

FEMALE AND MALE RATINGS
ISO 23537-1: INDEPENDENTLY TESTED TEMPERATURE RATINGS

All ONE PLANET sleeping bags are temperature rated in accordance with ISO 23537-1. This is the only globally recognised standard for the temperature testing of sleeping bags, and gives ratings for both females and males. Sleeping bags tested to the International Organisation for Standardisation 23537-1 (Requirements for sleeping bags) allow users to make informed, educated and accurate decisions.

The ISO 23537-1 testing methods allows objective comparisons of the warmth of different shapes (mummy, tapered rectangular and rectangular), sizes (small, regular and large) and how this translates into warmth for both females and males. When reading our temperature rating information, the ’Comfort’ rating gives an accurate figure for the lower limit of comfort for a standard female, while the ‘Limit’ is an accurate gauge of the lowest limit of comfort for a standard male.

Not all manufacturers test to this standard, nor give information about how they arrive at their temperature ratings. As a result, care should be taken when comparing claims of warmth.

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