A sleeping bag is a pain to wash, and after a few sweaty nights it needs it. A liner solves that: you sleep inside the liner, and it’s the liner that goes in the washing machine. The Naturehike ZY20 Ultralight Sleeping Bag Liner is about as light as they come, at 128 g. We paid $35 each for ours.
What’s in the box
A thin nylon sack, 210 × 80 cm, that you slide into your sleeping bag, with a small white stuff sack to pack it in. It comes in green, brown or grey.
What we like
- Very light: 128 g on the label
- Packs to the size of a small can
- Keeps your sleeping bag clean
- Machine washable
- Long and roomy: 210 × 80 cm
- Comes in green, brown or grey
What we don’t
- Thin nylon adds little warmth
- No zip: you slide in from the top
- Not as soft as cotton or silk
Quick Specs
| Spec | Details |
|---|---|
| Brand | Naturehike |
| Model | ZY20 |
| Material | 100% nylon |
| Colour options | GreenBrownGrey |
| Weight | 128 g |
| Size | 210 × 80 cm |
| Packed size | 6 × 15 cm |
| Care | Machine washable |
What it says on the label
The label sewn into the liner says it weighs 128 g, and it’s 100% nylon. It packs into a small white stuff sack of about 6 × 15 cm.
Weight and packed size
This is what the liner is built around. The label says 128 g, and ours came to about 133 g on the scale packed in its stuff sack. In the sack it’s roughly the size of a small drink can, so it fits in a jacket pocket or the corner of a pack.
At that size and weight there’s no reason to leave it at home, whether you’re hiking, staying in a hut or just want something clean to sleep in.
Size and fit
Laid out, the liner measures 210 × 80 cm, which is long enough for tall sleepers and wide enough to move in. The label calls the shape a mummy: it’s wider at the top and tapers towards the feet, so it sits neatly inside a tapered sleeping bag.
There’s no zip. You slide in from the top, which takes a moment longer than with a zipped liner, and it’s the reason the liner is so light.
Fabric and care
The liner is 100% nylon. It’s thin and smooth, and it dries quickly after a wash. It isn’t as soft against the skin as cotton or silk, and because it’s so thin it adds only a little warmth. Think of it as a sheet for your sleeping bag, not an extra blanket.
It’s machine washable. After a trip the liner goes in the wash and the sleeping bag stays clean, which matters most with down and other bags that are hard to wash.
Conclusion: Naturehike ZY20 Ultralight Sleeping Bag LinerConclusion
The Naturehike Ultralight Sleeping Bag Liner is a very light way to keep your sleeping bag clean. It weighs 128 g, packs to the size of a small drink can, measures a roomy 210 × 80 cm and goes in the washing machine. The thin nylon adds little warmth, it isn’t as soft as cotton or silk, and there’s no zip. I paid $35 each for ours. For hikers and travellers who want a clean bed without the weight, it’s a very good buy.
A 128 g nylon sleeping bag liner, 210 × 80 cm, that packs to the size of a small drink can and goes in the washing machine.
It’s thin, so it adds little warmth, and it has no zip. It suits hikers and travellers.
- Hikers
- Travellers
- Ultralight
Yes. $35 is cheap for something that keeps a much more expensive sleeping bag clean and weighs next to nothing. If you want a liner to add real warmth, a fleece one is the better choice.
