Reactor Lightweight Sleeping Bag Liners Reactor Lightweight Sleeping Bag Liners Reactor Lightweight Sleeping Bag Liners
Reactor Lightweight Sleeping Bag Liners Reactor Lightweight Sleeping Bag Liners Reactor Lightweight Sleeping Bag Liners

Reactor Lightweight Sleeping Bag Liners

SKU: STS-10200-PEWTER

Increase the warmth of your sleep system (up to 4°C) with minimal additional weight. View full details
Colour: PEWTER
Size: Short

$99.99

or 4 interest-free payments of $24.99 with
Afterpay – How it works
The Reactor Lightweight Sleeping Bag Liners are optimised for minimal weight and maximum warmth adding up to 4°C of warmth to your sleeping bag and mat while also extending the life of your sleeping bag by reducing dirt and wear on the inside. They are made with Thermolite® Pro fabric that uses infrared-absorbing ceramic pigments and hollow-core fibres to trap your body heat and is stretch-knit which, together with arm openings, allows for unrestricted movement. Ideal for ultralight adventures, machine washable and quick drying.
  • Lightweight and insulative, Thermolite® Pro technology with hollow-core fibres and infrared-absorbing pigments enhances warmth with minimal pack size
  • Stretch fabric means the Reactor Liner fits any shape of sleeping bag
  • Stretch-knit and shaped arm openings allow unrestricted movement, providing natural comfort throughout your sleep
  • Ergonomic design with a fitted hood delivers optimal warmth and comfort without extra weight or bulk
  • Snap connectors at the shoulders easily pair with Sea to Summit sleeping bags for quick, hassle-free entry and exit
  • Machine washable construction simplifies care and reduces wear on your sleeping bag over time
  • HeiQ Fresh odour control technology helps keep the liner fresh even after extended use
  • Comes with a stuff sack
  • Crafted with certified recycled fibres and bluesign®-approved materials to minimise environmental impact
  • Ideal for
Average weight
235g (Short), 255g (Regular), 270g (Long)
Material
100% post-consumer recycled polyester
Fits to
170cm (Short), 185cm (Regular), 198cm (Long)
Foot width
55cm
Length
178cm (Short), 193cm (Regular), 206cm (Long)
Rolled size
10 x 18 x 10cm
Shoulder width
80cm

Thermolite® Pro: offers an extra thermal boost for warmth and comfort in cold conditions. Thermolite® Pro far infrared fibre (FIR) technology is a lightweight, hollow fibre with special ceramic pigments that generate warmth for your body. Liners made with FIR fibre are more efficient at absorbing the far infrared rays emitted by your body and reflecting them back to you. This heat transfer by re-radiation effectively improves your body's heat retention.

ThermoLite® EcoMade: is a sustainably made material that offers an insulation effect for an added thermal boost. Thermolite® EcoMade employs the tried-and-tested performance of hollow-core Thermolite yarn and is made with 100% recycled resources. Hollow core fibres trap air, provide insulation and wick moisture to the outside of the fabric where it can dry quickly. Plastic bottles are collected, cleaned, and ground up into flakes. They are then converted into chips, spun into fibre and yarn, and finally, woven into your liner. GRS-certified (Global Recycled Standard) and offer the same quality and durable lightweight warmth as their polymer virgin counterparts but with a lower carbon footprint.

HeiQ Fresh: Sea to Summit Liners are treated with HeiQ Fresh FFL, a biocide-free, highly effective odour control technology that uses a bio-based Amino Sugar Polymer to neutralise body odour.

Need help? Get in touch

How long will my order take to arrive?

Standard NZ orders are sent via NZ Post Overnight Delivery. Orders placed before 2pm are usually delivered the next working day. Rural deliveries and some remote areas may take a little longer. Oversized items like large packs or tents can take 5–9 working days.

How much does shipping cost?

Shipping is free on New Zealand orders over $150. Orders under $150 have a flat $5 shipping fee. Oversized items incur an additional shipping charge due to their size and weight.

Can I return or exchange an item if it doesn’t fit?

Yes. New and unused items can be returned within 30 days for a refund or exchange, provided they’re in original condition with tags and packaging attached. If you’re unsure about sizing before ordering, our team is always happy to help. Customers are responsible for return shipping costs, but we’ll cover the freight cost of sending out exchanged items.

Can I click & collect my order?

Yes - we offer free Click & Collect from all Bivouac stores. If your item is already available in your selected store, it may be ready the same day. Some items may need to be transferred between stores and can take 3–5 working days. We’ll contact you as soon as your order is ready to collect.

Can I track my order?

Yes. Once your order has been dispatched, you’ll receive a Shipping Confirmation email with your NZ Post tracking link and details. All online orders are fully tracked so you can follow your delivery from dispatch through to arrival.

Reactor Lightweight Sleeping Bag Liners

Reactor Lightweight Sleeping Bag Liners

PEWTER

$99.99

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Reactor Lightweight Sleeping Bag Liners
Increase the warmth of your sleep system (up to 4°C) with minimal additional weight

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