Sleeping bag expansion gusset

An optional extra for the broader among us, this zip-in expansion gusset adds an extra 25 centimetres in diameter at the shoulder of One Planet bags, tapering to nothing at the end of the side zip of the main bag. Available to fit every model and size perfectly, it is filled to match the warmth of the bag it will accompany. (Not available for the Booster, Cocoon or Stowaway.) Made of 40 denier V2 fabric, it is a simple, clever way of adding some wriggle room to your nighttime attire.

 
Booster Add 5

booster
The One Planet Booster is designed to add warmth to your existing sleeping bag, or can be used on its own for camping and travelling in warm conditions. This lightweight number has V-baffles filled with 750+ duck down and uses 15-denier Vapour Vent fabric, V2-15D logogiving high warmth for weight. It makes an excellent companion when your sleeping bag is in need of a few extra degrees, or you can add another layer of clothing and take your Booster on an ultralight adventure.

For something so good, it's deceptively simple: there's not even a hood to weigh you down. It's just a tapered sack which zips open to form a luxurious comforter. (However, we’ve still included features like our famous V-baffles.)

The Booster is filled with our 750+ loft duck down, which has excellent compactability and loft recovery, with a long user life. Available in regular and large sizes.

booster

Specifications
Bag weight (g)

R: 450
L: 500

Fill type
750+ loft duck down
Inner and outer fabric
15 denier Vapour Vent
Shape Tapered rectangular without hood
Foot type
Round
Baffles V-baffles


Temperature rating, ºC Increases temperature by 3-5ºC
Possible uses Add warmth to main bag, camping and travelling in summer
Zips

L, R


Sizes (user height x shoulder circumference, cm)
R: 187 x 160
L: 195 x 178
Colours Thunder/oyster

Technical Information
Our sleeping bags - materials
Our sleeping bags - other information