Sea to Summit Reactor Midweight Liner - Regular

Name: Sea to Summit Reactor Midweight Liner - Regular
Brand: Sea to Summit
SKU: 6whnuckvod
Availability: InStock

The Sea to Summit Reactor Midweight Liner is a versatile thermal boost designed for every adventur...

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Product Information

Full details

The Sea to Summit Reactor Midweight Liner is designed for backpackers, travelers, and hut-trippers who need a reliable thermal boost without significant added weight. By utilizing Thermolite Pro technology, it effectively adds up to 6 degrees Celsius of warmth to your sleep system while acting as a protective barrier to extend the lifespan of your sleeping bag. While it offers excellent versatility, users should note that the regular size is specifically optimized for individuals up to 185 cm tall, limiting its utility for taller hikers.

All features

Material	Fleece
Model Part Number	UUACMIZZ5696_BEL_999
Brand	Sea to Summit

Extended Product Information

FAQs

Can I use this liner as a standalone sleeping bag?

Yes, it can be used as a lightweight summer sleeping bag or as a travel sheet in warm environments, though it lacks the insulation of a traditional sleeping bag.

Will this fit someone taller than 185 cm?

The regular size is designed specifically for users up to 185 cm. Users taller than this may find the length restrictive.

How do I know if my sleeping bag is compatible with the snap system?

Look for internal snap-in loops near the shoulder area of your Sea to Summit sleeping bag.

Does the liner add a lot of bulk to my pack?

No, the stretch-knit fabric is designed to be lightweight and compressible, making it highly portable for backpacking.

Should I use fabric softener when washing?

No, do not use fabric softeners as they can clog the fabric fibers and reduce the effectiveness of the odor control and moisture-wicking technology.

Troubleshooting

Liner feels twisted inside the sleeping bag

Ensure the liner is fully smoothed out before climbing in, or use the integrated snap points if your sleeping bag supports them.

Fabric retains odor after multiple uses

Wash the liner thoroughly using a technical gear wash to remove body oils and reset the HeiQ Fresh treatment.

Pros and Cons

Pros

Adds up to 6 degrees Celsius of extra warmth
Stretchy material allows for unrestricted movement
Helps extend the lifespan of your sleeping bag
Odour control technology reduces the need for frequent laundering
Compact and lightweight for easy packing

Cons

Height restriction of 185 cm may not suit all users
Does not replace a high-rated winter sleeping bag in extreme conditions
Requires proper care to maintain the antimicrobial treatment

Setup, Compatibility & Care

To set up, simply slide the liner into your sleeping bag. If you own a compatible Sea to Summit bag, align the snaps at the shoulder area to integrate the two units, preventing the liner from twisting while you sleep. Regarding compatibility, this liner works with any mummy or rectangular sleeping bag, though the snaps are proprietary to the brand. To care for your liner, wash it on a gentle cycle with cold water using a mild detergent. Avoid using fabric softeners, as these can impede the moisture-wicking and odor-control properties of the fabric. Always hang-dry the liner in a shaded, well-ventilated area to protect the integrity of the synthetic fibres.