# Sea to Summit Reactor Lightweight Sleeping Bag Liner, S, Pewter

**URL:** https://aio.lv/en/product--sea-to-summit-702788--12428155
**Data updated:** 2026-05-13 21:52 (EEST)
**Category:** Sleeping Bags
**Manufacturer:** SEA TO SUMMIT
**Manufacturer code:** 702788
**EAN:** 9327868169788
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 43.49 €
**Prices and availability valid until:** 2026-08-07 23:59
**Price without VAT (21%):** 35.94 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sea-to-summit-702788--12428155

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

The Sea to Summit Reactor Lightweight sleeping bag liner is designed to provide extra warmth and comfort for your sleeping system. Made from Thermolite fabric, this lightweight liner adds thermal insulation to your sleeping bag, effectively extending its temperature range. Ideal for camping, hiking, and travel, it keeps your sleeping bag clean and is easy to maintain. The compact size S is perfect for smaller users seeking efficient thermal performance.

## Long description

The Sea to Summit Reactor Lightweight Sleeping Bag Liner in size S is a high-performance accessory designed to enhance the thermal efficiency of your sleeping system. Crafted from advanced Thermolite fabric, this liner provides a significant boost in warmth while remaining exceptionally lightweight and breathable. It serves as an essential layer for outdoor enthusiasts looking to extend the temperature range of their existing sleeping bag, ensuring comfort during cooler nights in the wilderness.
Advantages
The primary benefit of this liner is its ability to add warmth without adding significant weight or bulk to your pack. The Thermolite material is engineered to trap heat effectively, providing a cozy microclimate inside your sleeping bag. Beyond thermal insulation, the liner acts as a protective barrier, keeping the interior of your sleeping bag clean from body oils and dirt, which helps prolong the lifespan of your primary gear. Its compact design and soft, stretchy fabric ensure a comfortable fit that moves with you, preventing the restrictive feeling often associated with traditional liners.
Suitable for
Backpacking and long-distance hiking
Camping in variable weather conditions
Travelers staying in hostels or mountain huts
Users seeking to increase the temperature rating of their current sleeping bag
When it may not be suitable
This liner may not be necessary for users camping in consistently hot or tropical climates where additional insulation would cause overheating. Furthermore, individuals who prefer a very loose fit while sleeping might find the mummy-shaped design of this liner slightly restrictive.
Key specifications
Material: Thermolite fabric
Size: S (Small)
Color: Pewter
Design: Mummy shape with box foot
Weight: Lightweight and packable
How to use
To use the Sea to Summit Reactor liner, simply slide it inside your sleeping bag before you go to bed. The liner features a contoured mummy shape that aligns with most technical sleeping bags. Once inside, you can crawl into the liner, which acts as an additional layer between you and the sleeping bag fabric. It is easy to enter and exit thanks to the stretchable nature of the Thermolite material.
What to consider before purchase
Ensure the size S dimensions are compatible with your height
Check if your current sleeping bag shape is compatible with a mummy-style liner
Consider the weight and space savings compared to carrying a heavier sleeping bag
Usage recommendations
To maintain the performance and longevity of the Thermolite fabric, machine wash the liner in cold water on a gentle cycle and air dry whenever possible. Avoid using harsh detergents or bleach to preserve the thermal properties of the fibers.

## FAQ

### How much does the Sea to Summit Reactor Lightweight Sleeping Bag Liner S cost, and is it available for purchase?

The price is 43.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 17.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All SEA TO SUMMIT products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized SEA TO SUMMIT service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty