

Reactor Lightweight Sleeping Bag Liner
by Sea to Summit
Size
Swipe for more sizes · crossed out = sold out at Sea to Summit Australia
- Price checked at the store
- You buy from Sea to Summit Australia
- Store delivery & returns
Price history
Last 90 days at this store
How you earn Points here
- 1
Open the deal from UNICASH
Use Shop at the store below — that is how the order is matched to you.
- 2
Shop as normal
Finish the purchase in the same tab. No code, no receipt.
- 3
Points show as Pending
Usually within a day of the order.
- 4
Available after confirmation
Once the store confirms, typically 30–60 days.
Sea to Summit Australia does not earn Points yet. We will add it when the store joins.
Details
- Brand
- Sea to Summit
- Category
- Baby & Kids
- SKU
- 053201
- Sizes
- 3 in stock
What UNICASH checked
- Price checked against Sea to Summit Australia on 13 Oct 2026.
Description from Sea to Summit Australia
Optimised for minimal weight and maximum warmth, the Reactor Lightweight enhances sleep system performance with advanced Thermolite® Pro fabric, which uses infrared-absorbing ceramic pigments and hollow-core fibres to trap body heat. Adding up to 4°C|7°F of warmth with minimal bulk, it’s ideal for ultralight expeditions. Stretch-knit fabric and articulated arm openings ensure unrestricted mobility. Treated with HeiQ Fresh odour control, it’s quick-drying, machine washable, and helps prolong your sleeping bag’s lifespan by reducing wash frequency.
Features
- Lightweight and insulative, Thermolite® Pro technology with hollow-core fibres and infrared-absorbing pigments enhances warmth with minimal pack size
- Freedom to Move – Stretch-knit and shaped arm openings allow unrestricted movement, providing natural comfort throughout your sleep
- Technical Shape and Hood – Ergonomic design with a fitted hood delivers optimal warmth and comfort without extra weight or bulk
- Fits any sleeping bag - Stretch fabirc means the Reactor Liner fits any shape of sleeping bag
- Stay Fresh Longer – HeiQ Fresh odour control technology keeps the liner fresh after extended use
- Sleep System Integration – Snap connectors at the shoulders easily pair with Sea to Summit sleeping bags for quick, hassle-free entry and exit
- Easy to Keep Clean – Machine washable construction simplifies care and reduces wear on your sleeping bag over time
- Lower Impact Materials – Crafted with certified recycled fibres and bluesign APPROVED materials to minimise environmental impact
Buying from Sea to Summit Australia
You buy directly from Sea to Summit Australia: their price, delivery, returns and support apply. UNICASH shows the price we last checked.
Points on tracked purchases are earned under the Top Deals Terms.
Sea to Summit Australia
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